Aimco Brakes Scuba Diving Equipment 100 User's Manual

Aimco Brakes Scuba Diving Equipment 100 User's Manual
a ®
Cub Cadet Tractor
Model 70 and 100
Price 75d
The instructions and special tools shown in this Blue Ribbon Service Manual are for use by
International Harvester Dealers and their factory trained servicemen.
The specifications as listed in this manual are current as of the printing date. Due to
changes and improvements in our products, dealers are periodically issued service bulletins
to keep this manual up-to-date. We suggest you refer to the most recent information when
performing service work on this equipment.
International Harvester Factory Trained servicemen are best qualified to service I.H. equip-
This manual covers the servicing procedures of the chassis components of the Models 70 Ve
and 100 International Cub Cadet tractors. The engine, fuel system and ignition system | —
are covered in Blue Ribbon Service Manual GSS-1350 (also the electrical system when so
1. File this Manual in Book 12 after Divider Tab GSS-1349.
2. Enter the following information in the Service Manual Index.
Print, or preferably type in, the Manual Description, Form |
Number, and the Book Filed in, on the following pages:
Tractor SpecHICREIONS . - .......e... Page 3
Tractor Transmission . . .....o ls... Рой
Tractor Differential & Final Drive ... .. > 13
Prec Ces 1 EEE ae: E
Timo: CFR --... : « e nes na. eo. me 18
Tractor CANE oh ae «6 wow (ee " —
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Jan ET Nes NR SEA ea 6
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BORE ARIE - os aioe y 4 e E E 3-1 uo Eo Cai oa a ae a 6
Fra ae Ed au Te ee ve as ES 6
ELORL: MEDIO: re “oe ee rad va a a $ бр ааа aa 6
MORTE A TT a a a Pa Cs AT e a € 6
Creeper Attachment (Underdrive) . . . . . . . . . A aL e aa aa Ad + A 6
DOCE a» += E ED a el 200 hi a A DNA a 8
MOOrima MESITA + <> - a A ANA REE y e a E AE 10
Front Wire: and Bars <= + + : 210 2 1 -.:.0 e e 66 кое в aid aa. 12
FORTRAN. oo ob Ea NE TE EIA es 13
8 SECTION 1 aa 20. amaia a a. «ak «aórreo .1 13
HE GE TERRI << a > 4 1: la eN E TES es UE 13
Мара EE la: = no ho hh igh Bt e a Elda: a 13
ai Ar ia E". AE AE E PEN ae le Eh 14
Reapsembiy 01 IN ENuCKION 1e 15 ov vie a a ía asadas ar 14
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STORES > « » a. 2 TT AT OA A e a Te LT 9 18
STA E IDE Sana <a Aa hi ha ar ie dN ve ea hE eal we 19
ROGUCHBR DINE сло tn be ani sm MUA aaa a A AN a 21
И Дор a E Lr ie be aa a AA a TA E 23
Fr 11 1 1 ae ea e 25
Removal and Disassembly (Differential) . . . . . o TEA A aa Ne ea MA NO 25
Disassembly (Transmission) ............. PEO IE aaa eE Aa da E
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CUB DEN Tu ET TT CE dale a 28
lllust. 1. Left front view of model 70 cadet.
The International Cub Cadet is available
in two models. The model 70 is powered
by a 7 horsepower, four cycle, air cooled,
gasoline engine and is available with re-
tractable hand starting or electric starting.
The model 100 is powered by a 10 horse-
power, four cycle, air cooled, gasoline
engine and is available with electric start-
ing only.
The chassis is the same for both models.
Tractors equipped with electric starting
have a combination generator and cranking
motor. Both models use the same genera-
tor-motor unit, however, the model 100 is
equipped with a larger capacity battery.
Illust. 2. Right front view of model 100 cadet.
The electrical systems of these tractors
are automatically polarized when the
starter button is pressed.
The clutch and brake are operated by a
single foot pedal located on the left side of
the tractor. Separate adjustments are pro-
vided for each unit.
All cadets are equipped with an imple -
ment control lever, conveniently located on
the right side of the tractor.
Power is transferred directly to the
clutch by a driving plate attached to the en-
gine flywheel pulley.
A friction disk, held between two spring
loaded plates on the clutch shaft, transfers
power through the clutch shaft to the gear
reduction unit on standard tractors, and to
the underdrive (creeper) unit on tractors
so equipped.
Iwo friction material inserts apply
'Caliper Type" holding to a round flat
plate located on the splined front end of the
transmission countershaft; thus, braking is
applied through the differential to both rear
Reduction Drive
The reduction drive housing is located
ahead of and is secured to the transmission
housing. The reduction input shaft with
gear is driven by the clutch shaft (or
creeper attachment if so equipped), and
drives the reduction gear located on the
front end of the transmission input shaft.
The ratio of reduction is seven to one. The
input shaft with gear is supported by a ball
bearing at the front and a needle roller
bearing at the rear.
Sliding spur gears are located on the
transmission input shaft and mesh with
spur gears on the countershaft. Shafts are
mounted in ball, roller, and needle bear-
ings. Gears have crowned induction
hardened teeth with rounded edges for ease
of shifting and long life. The reverse idler
gear is mounted on a separate shaft.
Two pinions, a pinion shaft and two side
gears are positioned in the one piece cast
iron carrier case. The gears are carbu-
rized, hardened alloy steel.
The bevel gear is riveted to the carrier
case. The carrier assembly is mounted in
tapered roller bearings. Bearings are pre-
loaded to control deflection of the assembly
when loaded.
Rear Axles
The rear axles are splined on their in-
ner end where they are supported and
driven by the differential side gears. Snap
rings secure the axle shafts in the side
gears. A bronze bushing in each axle car-
rier supports the rear axle outer end. A
flange is welded to the axle outer end to
receive the rear wheels.
Front Axle
The cast iron front axle has '"'I'' beam
construction with raised arch center sec-
tion. The axle is supported by a pivot shaft
in the main frame cross channel bracket.
Front Wheels
The wheels are formed from sheet steel
and welded to steel tubing. A pre-lubri-
cated sealed ball bearing is pressed into
each side. These wheels can be used for
service on older model cadets by removing
the ball bearings and pressing in service
A spiral worm cam and lever with single
follower and control arm actuates the ball
socket drag link to the left front steering
knuckle. The ball socket tie rod connects
the right and left steering knuckles. The
worm (cam) shaft is supported by ball
bearings. Design features provide caster,
camber, and toe-in for easy steering and
trouble free operation.
Creeper Attachment (Underdrive)
A four to one ratio unit is available for
field application. This planetary gear re-
duction unit is mounted ahead of and is se-
cured to the front of the reduction drive. A
speed selection lever provides standard or
"стеерег'' speed shifting as desired.
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jue rt ates Te ie A a BE, NA A DS . Cam and lever
ITS a ee haha ee ee nal ли к) колее ‚ Bal
Front Wheels
FI a A0 +0 iaa wy on A a A Ь, Sealed pre-lubricated ball
EEES Ga a da a a ax e y avian wi aT Ree e 1.375 to 1.380 in.
Paie 111 4 e a aa 8 HON ue Ue EL Jamie Tu 7 1/32 to 1/8 in.
CE AO a la a woe le A TU en Neves 2-1/2 degrees
СОВР ИИ пасе кож ETRE em, RE aw ELE ETE € ES 0 degrees
SUCRE TRIER = 55 4 ka Wr le нк A 8 6 ft. 9 in.
Front Axle
CONDICIÓN: » . - » » le +3 ER he alía sen es hee
Aa E Ss» “hos RE Ad . «+ «+... Center pivot shaft
Steering knuckle diameter . . . + с коне ко a ee ea .747 to .750 in.
Tire Size
DE pe 2 dea a > «ea y e SR a > ‚ 4.80/4.00x8
E CA Aa 5 au we ae ER a
DAD os + > dba + VA CE 43 in.
o... A rt A CEA EE NE 27 in.
Length, Over-all . . . . . e Eh CE AL ‚ 65 in,
Width, Over-all . CEN A CM i во So Ee TR ‚<= 33-14 in.
Ground Clearance. . . . . . . . .. E a 6 in.
Type - . . . . . E AP AAA E A . Double-plate, dry disc,
spring loaded
DE uns 0 boi € as с rie : ln.
Clutch release bearing ....... e a ae e e a... Sealed, pre-lubricated ball
Clutch loading spring
E E © i en vial © ww ews ste (рае fe: - EE
ESE ABRE + a 054 U EN LE Te … 3.10 in.
TERCIO ge ws ee eee ER a НК о 235 to 240 lbs.
Clutch teasing spring
Fres length . - 5 - 4 e 4 Sn 8,155 Ve E ute | ia ‚= 442 in.
EOE TORBEN ai ía aaa y Y e a ee pue IA
ait сб сео NA Ne de Ee и e +. 30 Ibs.
Type . .
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Reduction Drive
Input shaft with integral gear . . . . . . .
Ja: AT CT Te A
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E = ss ® =
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E AEs TE. il Tr TS NC A i „йо ile ER mE il
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Gears forward - -
Gears reverse
Fi ie BR Tat TT Ge Cl CS A
a lll oll OR RR i
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Fr о ФФ = N = & Es &® EB % — ® *® = WH WH BW BB Ww Ww B
MERE MILE > Sol. A a NT Cae Y MA
Countershaft and bearing spacer lengths:
l. Between front bearing and 3rd speed driven gear
¿. Between 3rd speed driven gear and 2nd speed
GYIVeR GORY es +4 «e аа >
3. Between 2nd speed driven gear and lst speed
ri 9 ET CR 4
4. Between lst speed driven gear and reverse
OEE BERNE Tey aes kes Ea 2 EE
5. Between reverse driven gear and rear bearing. . .
O ML ea se a hw
Number of side ¿ENYA . . . . . . . .. - .
Bearings (two) . . . . .
Pr Ly gis ily TE NIL Fe са CN elle. ae TUE ol К сай со el
ee A B® #1 № ® # WB [email protected] в ее ее | Ww B&F à
Bevel gear and pinion backlash . . . . . . . .
DOVE RE EE a ва aR
EEE A a CR y dea + a e. 4
Sun gear . . . .
Planet gear
Bearings . .
#0 ® ®& IEF FF Ww & # WW той о #* _ ® à
Ar бо ‚ CE cle, TR WF i a LEA dr A a o ile AE
Reduction ratio
Internal caliper
On transmission countershaft
12 teeth
84 teeth
.004 to .011 in.
Ball - front
Needle - rear
Selective sliding spur gears
Ball - front
Roller - rear
Ball - front
Needle - rear
.848 to .852 in.
1.310 to 1.314 in.
.310 to .314 in.
.686 to .690 in.
690 to .694 in.
Bevel gears and pinions
2 (10 teeth)
2 (16 teeth)
Tapered roller
1.5 to 8.0 in. lbs.
.004, .007, .015, .030 in.
.003 to .005 in,
On differential case
Integral part of countershaft
13 to 46
Planetary gears
Integral part of case
3 - spur type
Ball - front
Bushing - rear
4 to 1
Clutch shaft
Steering |
: Frame ‘
; cross-member |
Clutch-brake shaft
Steering ME 1
unit lever | IR...
Drag link ball joint
IHlust. 5. Underside view of steering support and frame cross member.
Steering column
| washer
1. Remove the steering wheel. Jam nut
2. Remove the felt seal, retainer, bear- | E
ing and bearing retainer from the upper end
of the steering column.
3. Remove the drag link rear ball joint
from the steering unit lever.
4. Remove capscrews "A" (Illust. 5)
from the frame cross member and steering Adjusting plug
| PL
e E.
Adjusting nut
5. Lower the steering column assembly
through the instrument panel pedestal and
. т
5 a ps 3 | |
À ñ
Lock nut
Plug staking
Steering lever
and bolt
FEA-7 5093
lllust. 6. Steering assembly.
Steering column
Jam nut
Adjusting nut Lock nut
Plug staking
Steering lever
and bolt
Adjusting plug
FEA-7 5093
lllust. 6. Steering assembly.
l. Secure the steering lever and bolt in
a vise.
¿. Remove the adjusting plug.
3. Remove the lever bolt jam nut, ad-
justing nut, and bronze washer,
4. Slide the column and housing assem-
bly away from the lever, bolt and cam fol-
5. Remove the steering cam and bear -
ings from the housing.
6. Remove the bearing race retainer
snap rings.
Inspection and Repair
l. Wash all parts in cleaning solvent,
then dry thoroughly.
lllust. 7. Inspection of steering cam, bearings and races.
Arrows and pencil indicate areas for inspection.
à. Inspect the cam follower for wear
(flat spots).
3. Inspect the cam ends, bearings and
races for wear, roughness and pitting.
4, Inspect the cam grooves for wear,
roughness and galling.
5. Inspect the housing for cracks and
stripped threads.
6. Inspect the upper bearing (nylon
bushing) for wear or damage.
Reassembly and Adjustment
1. Thoroughly coat the cam ends, balls
and races with chassis lubricant.
à. Install the balls and races on the cam
ends and secure with their retaining snap
3. Thoroughly coat the cam and bearings
with chassis lubricant then install them in-
to the housing and column assembly.
NOTE: Be sure the races enter the
housing squarely and are not '"cocked."
4. Install the adjusting plug. Screw the
plug inward until end play (of the cam) is
removed and the cam turns free.
5. Stake the plug by inserting a small
center punch through the housing holes and
spread the plug threads to keep the plug
from loosening.
6. Fill the housing with chassis lubri-
7. Loosen the cam follower locknut,
then "back out" the cam follower one turn.
8. Install the seal, retainer and lever-
bolt assembly to the housing.
9. Install the bronze washer and adjust-
ing nut. Tighten the adjusting nut sufficient
to provide good seal compression. Refer to
lllust. 6 for adjustment dimensions. Secure
with the jam nut. Tighten jam nut to 40 ft.
lbs. Lubricate the lever-bolt at the fitting.
10. "Center'' the steering cam by ro-
tating the steering shaft half way between
full right and full left turn,
Bearing race
retainer rings e FEA-63298
IHlust. 7. Inspection of steering cam, bearings and races.
Arrows and pencil indicate areas for inspection.
11. Adjust the cam follower inward to
eliminate backlash, then tighten locknut to
60 ft. lbs. Turn steering shaft full right
and left to check for binding.
12. Replace the steering assembly in
the tractor chassis. Secure with two cap-
screws through the frame cross member.
13. Connect the drag link.
14. Install the upper column bearing,
retainer, felt seal and retainer.
15. Replace the steering wheel and se-
cure with nut.
16. Adjust the drag link ''D'' (Illust. 8)
to proper length to place front wheels in the
straight ahead position when the steering
assembly is ''centered.''
1. Lock the brake and block the rear
wheels. Jack up the front axle.
2. Remove the capscrew and flat washer
from the outer end of the front spindle.
3. Slide the wheel and bearings from
the spindle.
NOTE: The bearings are a press fit in
the wheel and a slip fit on the spindle.
1. Wheel bearings can be driven from
the wheel hub with a hammer and long drift
punch. Drive from the inside toward the
Inspection and Repair
1. Inspect the entire wheel and hub for
weld separation, split hub tube and rim
lllust. 8. Steering tie rod and drag link ball joints.
17. Adjust tie rods ''C'' (Illust. 8) to
provide 1/32" to 1/8" toe-in.
2. Bearings should be inspected for
wear, seizure and seal condition.
1. If the bearings were removed, press
in new ones. Be sure force is directed to
the outer race only when being pressed in.
NOTE: These wheels may be used on
older model cub cadet tractors by pressing
in service bushings instead of ball bearings.
1. Slide the wheel and bearing assembly
over the spindle and secure with capscrew
and flat washer.
2. If excessive end play exists, place a
sufficient thickness of shim washers (3/4"
ID) over the outer end of the spindle and
between the retaining washer and wheel
llust. 9. Front axle components.
Steering Knuckle Removal (Ilust. 9) 2. With the front of the tractor frame
supported by a suitable stand, drive out the
1. Lock the brake, jack up the front of retaining pin from the front of the axle
the tractor and support it on a suitable pivot pin (1) (Illust. 9).
3. Remove the pivot pin (1). The front
à. Remove the front wheels, axle (2) is now free of its mounting and can
be removed (Illust. 9).
3. Disconnect the tie rod ball joints (4)
from left steering knuckle (6) and right
steering knuckle (7).
Inspection and Repair
l. Inspect all parts closely for wear,
4. Using a pin punch and hammer, drive bending and breaks,
out the coiled spring pin from the drag link
arm (8) and steering knuckle (6).
5. Remove the steering knuckle (6) from
the axle (2).
6. Remove the capscrew and flat washer
from the upper end of the steering knuckle (7).
7. Remove the steering knuckle (7) from
the axle (2).
Removal of Front Axle
1. Disconnect the drag link ball joint
"D' (Illust. 8) from the drag link arm (8)
(Ilust. 9). lHust. 10. Checking wear in front axle for steering knuckle
2. Check fit of steering knuckle pivot
pins to their respective bore in the axle.
Each part may be checked with microme -
ters and snap gauges to determine the ex-
tent of wear.
3. Check front axle pivot pin and its fit
in the axle.
Reassembly of Front Axle
1. Apply chassis lubricant liberally to
the axle pivot pin and its bore in the axle,
2. Position the axle in its support
bracket channel, align the pivot pin holes
and insert the pin.
3. Align the retaining pin holes (through
the front of the pivot pin and through the
front collar of the support bracket) then
drive the retaining pin through both parts.
Reassembly of Steering Knuckles
(Illust. 9)
l. Apply chassis lubricant liberally to
the steering knuckle arm thrust surface and
the bottom of the axle ends.
2. Insert the right hand knuckle pin (7)
in its respective bore in the axle and secure
with the capscrew and flat washer.
3. Insert the left hand knuckle pin (6) in
its bore in the axle and position the drag
link arm (8) on the pin.
4. Secure the drag link arm (8) and
knuckle (6) with the coiled spring pin.
NOTE: Spring pin must extend through
the drag link arm an equal amount on each
5. Install the tie rod (5).
6. Install the front wheels and check
toe-in adjustment.
Complete service of the clutch shaft,
loading spring, release bearing, and cush-
ion spring will require removal of the
tractor engine, then the clutch assembly.
Refer to GSS-1350 Engine Manual for
engine removal procedure then remove the
clutch shaft coupling rear pin, clutch re-
lease lever pin, and disconnect the clutch
release rod from the pedal arm.
When minor service (replacing the driv-
ing disk, driving plate or pressure plates)
only is required, perform the following
steps 1 through 13.
1. Depress the clutch and brake pedal
and lock it.
Clutch driving
Driving plate че
рой Вы =
IHlust. 11. Clutch shield removed showing clutch drive.
à. Remove the clutch shield.
3. Using a hammer and punch, drive out
the pressure plate locating pin (Illust. 11).
4. Remove the four capscrews (two on
each side) which hold the engine to the
tractor frame.
5. Release the clutch and brake pedal,
then slide the engine forward in the frame,
6. Replace the pressure plates, driving
disk or driving plate as necessary (Illust,
NOTE: Wiring cable clips (on tractors
equipped with electric starting) will need
spreading so that wires can follow engine
as it is moved forward,
7. Slide the engine rearward while
aligning the clutch shaft and driving plate
pins (Illust, 11),
8. Depress and lock the clutch-brake
9. Replace the pressure plate locating
pin (Illust. 11).
10. Align the engine to the frame and re-
place the securing capscrews.
ll. Secure the wires and cables in their
14. Connect the ground cable (if it was
13. Replace the clutch shield.
1. Clamp the clutch shaft in a vise as
shown in Illust. 12 and drive the coiled
spring pin out.
¢. Slowly release the vise allowing the
spring to extend as the shaft slips through
the vise jaws.
Clutch shaft
pressure plate
driving disc
Teaser spring
Clutch release
Loading spring Coiled
spring pin
Flat washer rod
14 FEA-75095
ol SRT |
lust. 12. Clutch shaft secured in vise for removal of pin.
3. Support the hubs of the pressure
plates, then drive their coiled spring pins
4. Support the clutch shaft coupling, then
drive the coiled spring pin out.
Inspection and Repair
l. Inspect the clutch driving disk for
wear from pressure plates and for elong-
ated holes from the driving plate pins.
Disk must be free of grease and oil.
2. Inspect both pressure plates for wear
on their contact faces.
3. Inspect the slotted hub of the rear
pressure plate for pinwear. If the slots
are cupped from pin wear the plate must
be replaced.
4. Inspect the teaser spring ends. Ends
should be rounded to prevent gouging the
clutch shaft. Check the spring tension (see
5. Inspect the loading spring ends. Ends
should be rounded to prevent gouging the
clutch shaft. Check the spring tension (see
6. Inspect the clutch release lever chan-
nel for wear on the curved area where con-
tact is made with the release bearing.
7. Inspect the clutch shaft for wear at
the front (pilot bushing area). Pin holes
should not be '"'wallowed out' or elongated.
Release bearing area and teaser spring
area should be free from scoring.
8. Clutch shaft coupling pin holes should
not be '""wallowed out' or elongated.
1. Install the clutch shaft coupling onto
the rear end of the shaft, align the pin holes
and secure by installing the coiled spring
2. Install parts to the clutch shaft in the
following sequence: flat washer, loading
spring, flat washer, release bearing (long
sleeve end forward), release lever (channel
flanges toward rear) and the teaser (cush-
ion) spring.
lllust. 13. Compressing the loading spring for pin
3. Install coiled spring pin through the
shaft (second hole from shaft front end).
4. Install rear pressure plate over shaft
so that pin slots in the hub engage the pin.
5. Install the friction driven disk and
the locating pressure plate.
6. Align the pin holes of the shaft and
locating pressure plate hub and secure with
coiled spring pin.
7. Apply chassis lubricant or "Lubri-
plate' to that area of the clutch shaft which
will be covered by the teaser spring and
release bearing.
8. Place the assembly in a press as
shown in Illust. 13. Center the clutch
driven disk and compress the loading
spring sufficient to install the coiled spring
Installation and Adjustment
1. Place the clutch shaft over the frame
cross member and move it rearward to en-
gage the coupling to the reduction unit or
""'creeper'' drive shaft.
Z. Align the release lever to its bracket,
install the pin and secure with cotter.
3. Apply chassis lubricant or ""Lubri-
plate’ liberally to the clutch shaft pilot
4. Slide the engine rearward while
aligning the clutch shaft into its pilot bush-
ing and the drive plate pins into their holes
in the driven disk.
5. Align the engine mounting capscrew
holes and install the capscrews.
6. Align the clutch shaft coupling rear
pin hole with pin hole in reduction drive
(or "creeper" drive) shaft and install the
7. Connect the clutch release rod to its
pedal shaft lever and secure with the return
clutch to allow components to move into
/ 3 8. Depress the pedal and release the
Sm b Clutch final alignment.
` release lever
1 — È a
| : ER Tighten the engine mounting cap-
a a Tr Clutch 9,
q T | | y
te — 10. Position the wires and cables in
: their clips and secure.
ll. Connect the battery ground cable.
12. Replace the clutch shield.
13. Check the clutch pedal and linkage
for proper adjustment. Refer to Illusts. 14
and 15.
и y y“.
lllust. 14. Underside view of brake and clutch control
Clutch disengaged - Clutching zone Clutch engaged
tractor must be
tree to coast.
Top surface of
Neutral zone: pedal foot pad
Both brake and clutch
are disengaged when
pedal is in this zone.
Braking zone: e
Brake must be engaged
when pedal is in this zone.
Pedal return stop
Free movement
1-3/8-inch maximum -
Brake must not engage until pedal
arm reaches this position.
Brake must be fully engaged when
pedal arm reaches this position. 3/4 -inch minimum Left foot ==
Illust, 15. Clutch and brake pedal linkage adjustments.
Tractors equipped with a '"'creeper' at-
tachment will require ''splitting'', and the
creeper removed before complete brake
service can be performed. Refer to page
19 of this manual for splitting procedure.
1. Drain the transmission lubricant.
2. Remove the brake adjusting screw
"C'" and jam nut "В" from its lever (Illust.
3. Remove the brake lever, pivot pin
and push rod (Illust. 16).
4. Remove the reduction housing front
cover plate and slide it forward on the
clutch shaft (Illust. 14).
Reduction housing
5. Remove the reduction gear from the
front of the transmission main shaft. Re-
fer to Illusts. 3 and 21.
6. Move the gear upward and the bottom
of the gear forward to clear the cover screw
bosses as the gear is lifted from the hous-
NOTE: See NOTE, paragraph 6, page 21.
7. Slide the brake disk forward on the
countershaft as the front lining and retainer
are moved forward in their bore. Refer to
Illusts. 3 and 16.
NOTE: Both linings and the disk can be
removed without removing the front lining
retainer; however, removal of the retainer
1s recommended for inspection and replace-
ment of the retainer O-ring.
Rear lining recess
Illust, 16. Exploded view of brake components and
reduction housing.
Rear lining
Pivot pin
Retainer bore
Brake disc Retainer Lock nut
Push rod
Front lining screw
Brake lever
l. Inspect the control rods and levers
for wear at their connecting pivot points.
à. Inspect the linings and disk for wear.
3. Inspect the disk hub splines for wear.
4. Check the splines on the countershaft
for wear.
5. Check the pedal return spring ends
for wear.
Reassembly and Adjustment
1. Clean the brake cavity and lining re-
cess in the reduction housing.
2. Place a small quantity of grease in
the rear brake lining recess in the reduc-
tion housing then insert the lining.
3. Install the disk on the countershaft
and slide it rearward against the rear
4. Install a new O-ring on the front lin-
ing retainer, lubricate the retainer and O-
ring then push them into the retainer bore
in the reduction housing.
5. Install the front lining in the retainer
lining recess and push the retainer and lin-
ing rearward against the disk,
6. Install the reduction gear on the
transmission main shaft and secure with
flat washer, lock washer and capscrew.
Tighten capscrew to 55 ft. 1bs.
7. Install a new cover gasket, then re-
place the cover plate.
8. Be sure the ball is in place in the
front lining retainer then replace the push
rod, lever, pivot pin, adjusting screw and
lock nut.
9. Refer to Illusts. 14 and 15 for adjust-
10. Fill transmission to proper level
with Hy-Tran fluid or SAE 30 engine oil as
specified in the Operator's Manual.
l. Remove the fenders and their support
brackets (if tractor is so equipped).
2. Remove the seat and its support
NOTE: Disconnect tail light wire at
junction under seat support (if tractor is so
3. Remove the clutch shaft coupling
rear pin. (Connects coupling to creeper or
reduction drive shaft).
4. Drive a small wooden wedge between
the front axle and frame on each side as
shown in Illust. 17.
Wooden wedge
leach side) —
we - 5: Steering drag link
Nl AA Hydraulic jack
Le de — 2" x4” blocks
E (both front wheels)
lust. 17. Front axle and wheels wedged and blocked for
tractor split.
5. Block both front wheels as shown.
6. If tractor is equipped with creeper
attachment, shift the lever forward then re-
move the lever knob and the breather.
7. Disconnect the brake rod from the
brake lever,
8. If tractor is equipped with three-
point hitch, remove the lift bar and its at-
taching plate. See Illust. 19 insert.
9. Place a jack under the implement lift
handle cross -shaft to support the frame.
Refer to Illust. 17.
10. Remove three capscrews from each
side of frame.
NOTE: Capscrews hold frame to the
rear axle, transmission and reductiondrive
housings. Holes in frame are seen in Illust.
Illust. 18. Splitting the tractor.
ll. Push down on the drawbar and pull
rearward on the transmission shifter lever.
Refer to Illust. 18.
Move the transmission -differential-rear
end assembly rearward far enough to dis-
engage from the clutch shaft coupling.
#7 |
3 Ei 3 00
EE ae
llust. 19. Tractor split for service of creeper, reduction
drive, transmission and differential.
Lower the front end (creeper) to clear
creeper shift lever through frame slot, then
assembly can be moved rearward and away
from the frame.
12. Support the transmission housing on
a stand or block and drain the lubricant if
internal service is to be performed.
13. Recoupling of the tractor is basi-
cally the reverse of splitting; however,
precautions should always be taken to safe-
guard against damage to shafts, bearings,
seals etc. when aligning and securing com-
ponents which work together. Always use
recommended lubricants as specified in the
Operator's Manual.
Removal and Disassembly
1, Split the tractor. Refer to page 19
this manual for splitting procedure,
2. Place an oil pan under the reduction
housing and remove the creeper assembly
(if tractor is so equipped),
= "a Support
$ | Боск |
_ 7 gl E
lllust. 20. Power train supported for disassembly.
3. Remove the brake lever, pivot pin and
push rod (Illust, 20),
4, Remove the reduction housing front
cover plate (Illust, 20).
lllust. 21. Reduction drive exposed.
5. Hold the drive coupling and shaft from
turning and remove the reduction gear re-
taining capscrew and washers, Remove the
gear spacer (Illust, 21),
6. Remove the reduction gear from the
transmission shaft and from the housing,
NOTE: It may be more convenient to
pull the reduction drive shaft, seal and
bearing as shown in Illust. 22 before re-
moving the reduction gear from the housing.
Clearance between the gear and the cap-
screw bosses is restricted on some tractors,
7. Remove capscrews from holes "A"
and "B"' (Illust, 22).
Creeper drive shaft
pilot bushing
puller | | UT
Oil seal
Illust. 22. Pulling reduction drive shaft, seal and bearing.
NOTE: Soft copper sealing washers are
used under the "'B'' capscrew heads,
8. Move the housing forward and away
from the transmission housing as the brake
disk slides off the transmission countershaft,
9. Pull the reduction drive shaft, seal
and bearing from the reduction housing if it
was not removed in step 6 NOTE.
10. Support the drive shaft splined cou-
pling and drive out the coiled spring pin.
NOTE: The splined coupling is used only
on tractors equipped with creeper attach-
11, Press the drive shaft from the ball
12. Press the needle bearing rearward
from the housing,
13, Remove the brake components,
Inspection and Repair
l, Inspect the drive shaft for wear on
the gear teeth, needle bearing area, oil seal
contact area and drive pin hole,
Z. Inspect the reduction gear teeth for
wear or chipping and the fit of the gear on
the transmission shaft,
3. On tractors with creeper, inspect
wear of pilot bushing for creeper drive
4, Inspect needle and ball bearings for
wear, pitting and roughness of operation,
5. Thoroughly clean the reduction hous-
Reassembly and Installation
1. Install a new gasket to the front of the
transmission case. Dowels in the case will
hold the gasket in place,
2. Press the needle bearing into the re-
duction housing from the rear. Rear end of
bearing should be flush with housing. Refer
to Illust. 3.
3. Press the ball bearing onto the drive
shaft. Refer to Illust. 3.
4. Lubricate the lip of a new oil seal and
install the seal onto the shaft, Be careful
when sliding the seal lip over the pin hole
in the shaft, Flat face of seal case must be
forward, Refer to Illust, 3 for arrangement
of parts,
5. Install the splined coupling and coiled
pin (if tractor is equipped with a creeper),
Coiled pin ends must be even with or below
the spline root to avoid interference when
shifting the creeper unit,
6. Install a new O-ring onto the brake
lining retainer and install in the reduction
7. Install the reduction housing to the NOTE: Seal holds ball bearing in place
transmission case, Be sure the gasket and and front cover holds seal in place,
dowels are in place.
8. Install new copper sealing washers 12, Tighten reduction gear retaining cap-
on the two lower capscrews. Refer to ''B" screw to 55 ft, lbs,
(I1lust. 22). Tighten capscrews at "A" and
"B'" to 80 ft, lbs. 13. Install new gasket and housing front
9. Install the brake linings and disk then
push the front lining retainer rearward to
hold disk and linings in place, 14, Install new gasket and creeper unit
(on tractors so equipped).
10, Install the reduction gear and spacer
to the transmission mainshaft and secure 15. Replace the brake push rod, ball, le-
with the capscrew, flat and lockwasher, ver and pivot pin.
Tighten capscrew after drive shaft is in-
16. Recouple the tractor by reversing the
11. Install the drive shaft with ball bear- splitting procedure,
ing, seal and splined coupling (on tractors
with creeper). Seal case should be flush 17. Fill transmission and creeper to
with housing, proper level with specified lubricant,
1. Drain the transmission lubricant.
д. Stabilize the tractor by driving wooden
wedges between the front axle and frame on
each side and block the front wheels, Refer
to Illust, 17.
3, Remove the drawbar and differential
housing rear cover.
= Axle shaft
inner end
4, Place a jack under either rear axle
carrier and raise the rear wheel off the
floor. Remove the "C"' type snap ring from
the axle shaft inner end. Refer to Illust, 23.
5. Slide the axle out of the differential
side gear and axle carrier. Refer to Illust.
Hust. 23. Differential and rear axle assembly.
Md | oil groove
— in bushing
E a".
re |
lllust. 24. Rear axle removed.
6. Support the transmission - differential
housing on a block and remove the axle car-
rier, Refer to Illust, 25,
=r —y 2]
ad ' В A
Transmission-differertial i
Differential carrier в
> Bearing cage
— Wood block
lllust. 25. Rear axle carrier removed.
7. Press the carrier bushing from the
8. Drive the oil seal from the carrier,
9. Clean the gasket surface of the axle
carrier and differential housing,
l, Inspect the axle shaft for wear at the
oil seal area, bushing location and splines
on the inner end.
2. Roll the axle shaft along a flat surface
to detect any warping or bending,
3. Check the axle carriers for cracks or
breaks, Remove any high spots from the
gasket surface with a flat file,
1, Press a new bushing into the axle car-
rier, The oil groove must be at the bottom.
2. Press a new oil seal into the axle car-
3. Using a new gasket, install the axle
carrier to the differential housing, Cap-
screw threads should be coated with a non-
hardening sealer (permatex) to avoid oil
leaks. The frame pad of the axle carrier
must be to the top as shown in Illust, 24,
4. Fill the cavity between the lips of the
oil seal with chassis lube or heavy oil,
5. Lubricate the axle shaft and bushing
then slide the shaft through the seal, bush-
ing, carrier and differential side gear. Ro-
tate the axle as it is pushed through to
avoid damage to the seal, Wipe off excess
6. Install a new "C" type snap ring to the
inner end of the axle shaft,
7. Replace the rear cover and drawbar,
8. Fill differential housing to proper
level with specified lubricant,
Complete service of the transmission
requires splitting of the tractor, removal of
the reduction drive (and creeper if so
equipped), rear axles, carriers and the dif-
ferential. The differential can be removed
and replaced without disassembling the
transmission, however, the transmission
countershaft should be removed when check-
ing preload of the differential carrier bear-
ings. The transmission and differential are
therefore covered together,
Removal and Disassembly (Differential)
l. Drain the lubricant.
Z. Split the tractor, (Refer to page 19.)
3. Remove the reduction drive, (Refer
to page 21.)
4, Remove the rear axles and their car-
riers, (Refer to page 23.)
5. Remove the differential carrier bear-
ing cage and shims from each side, Keep
the shims with each cage and identified for
each side,
6. Remove the differential from the
transmission case,
NOTE: The differential must be turned
into position shown in Illust, 26 before it can
be removed,
7. Drive out the pinion shaft lock pin,
8. Remove the pinion shaft,
9. Remove the pinion gears and side
10. If the differential drive gear requires
separate replacement, press out the eight
retaining rivets,
, ке i
i ah es д
FEA.63408 |
Hust, 26.
Removing differential from the transmission
_ Pinion
t— Lock pin
lHust. 27. Differential partially disassembled.
ll. Remove the bearing cones from the
differential carrier if they are to be re-
14. Remove the bearing cups from each
cage if replacement is necessary,
Disassembly (Transmission)
l, Remove the differential as previous -
ly described on page 25.
2. Remove the gearshift lever and cover
Hust. 29. Front view of transmission.
lllust. 28. Removing shifter rods. spacers are removed. Note the sequence
of spacers and gears for reassembly, See
Specifications for spacer lengths.
Shift the transmission into two gear
speeds to lock the transmission then remove
the nut from the countershaft,
7. Pull the mainshaft needle bearing
3. Remove the shifter fork set screws from the housing.
then drive the shifter rods forward and out
of the transmission, 8. Remove the reverse idler shaft and
CAUTION: Cover the gearshift pop-
pet ball hole to prevent the ball and 9. Remove the countershaft front bear-
spring from flying out as the rods ing, retainer and shims.
are removed, Refer to Illust, 28,
ion and Repair
4, Remove the capscrews from the main- Inspectio Р
shaft front bearing retainer, Refer to Illust. 1, Wash all parts in cleaning solvent
29. and dry with compressed air, Do not spin
5. Pull the mainshaft forward and out of 2. Check all bearings for looseness,
the transmission as the gears are removed, wear, roughness, pitting and scoring,
6. Push the countershaft rearward and 3. Check gears and shafts for wear and
out of the transmission as the gears and burrs. Remove any burrs with a fine stone.
4, Inspect the housing for cracks, re-
stricted oil passages and dents or raised
places on its machines faces, Smooth off
raised places with a file,
Reassembly is basically the reverse of
disassembly; however, particular attention
should be given to the following steps. Re-
fer to Illust. 3 for location of parts,
1. Be sure all bearings are thoroughly
à, The transmission mainshaft needle
bearing must be installed with its oil hole
aligned with the oil hole in the housing,
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Illust. 30. Checking pre-load of differential bearings.
3. Assemble the differential, carrier
bearings, cages and shims, Check bearing
pre-load and adjust as necessary before re-
placing the transmission countershaft, In-
stall or remove shims as necessary, Pre-
load is correct when a steady pull of one to
three pounds is necessary to rotate the dif-
ferential assembly as shown in Illust. 30.
4. Remove the differential assembly,
keep the shims with the cages then install
the transmission countershaft, bearings,
gears, spacers, front bearing retainer,
shims and nut. Tighten the nut to 85 ft. lbs.
Tighten retainer capscrews to 20 ft. 1bs.
5. Install the differential assembly,
keeping the pre-load shim pack correct as
previously established. Drive gear must
be on the right with teeth facing left.
6. Check the backlash between the drive
gear and pinion and the gear teeth bearing
pattern as follows. Refer to Illust. 31.
Figure A
Figure C Figure D
Illust. 31. Tooth bearing pattern.
7. Apply a thin coat of red lead or
prussian blue to the bevel pinion teeth
faces, then rotate the gears by hand and
observe the bearing pattern.
Some deflection will occur under load.
Allowance is made in gear design to pre-
vent concentration of load on teeth edges.
8. Hand testing and very light loads
should provide a pattern as shown in Figure
"B'' Illust. 31. When load and deflection
increases the pattern will progress as in
Figure "A",
9. The desirable (no load) pattern in
Figure '""B'' is the result of adjusting the
bevel gear lateral position to the specified
range of .003'" to .005" backlash.
10. Tooth bearing position from the root
to the crown of the tooth is controlled by
lateral position of the pinion. If low tooth
bearing on bevel pinion is indicated (as
shown in Figure '""C") the pinion must be
adjusted toward the bevel gear. If high
tooth bearing on the bevel pinion is indi-
cated (as shown in Figure 'D'') the pinion
must be adjusted away from the bevel gear.
NOTE: If it is necessary to move the
pinion in or out to correct 'Root-to-crown '
1, Split the tractor. Refer to page 19
this manual for splitting procedure,
2. Support the transmission and reduc-
tion housing on a suitable block, place an
oil drip pan under the creeper unit and
drain the creeper lubricant, Refer to Illust,
3. Four capscrews hold the creeper
housing to the reduction housing cover
plate. Remove the capscrews.
4, Bump the creeper to the side to
loosen the housing from its gasket and
dowels. Pull the creeper forward from the
reduction cover and splined coupling,
5. If the driven coupling or the pilot
bushing needs replacing, support the cou-
pling and drive out the coiled spring pin.
Remove the coupling,
bearing, the bevel gear must also be moved
laterally to maintain the specified backlash.
11. Stake the countershaft nut by center-
punching the face of the nut over a spline
groove, Refer to Illust. 29.
12. Continue the assembly in reverse
order of disassembly.
13. Fill housing to proper level with
specified lubricant.
NOTE: Creeper attachment has its own
lubricant separate of the transmission.
Fill creeper at breather and check at side
plug in creeper housing.
l, Remove the snap ring which holds the
input shaft bearing cage in the housing,
2. Pull the shaft, bearing, retainer,
planetary assembly and the direct drive
coupling from the housing.
NOTE: The spline grooves of the direct
drive coupling must align with the splines
of the shifter collar.
3, Support the direct drive coupling and
drive the coiled spring pin out. Remove
the coupling from the shaft.
4, Slide the planet carrier off the input
shaft and the planet gears off the carrier
5. Remove the flat thrust washer,
т Lo
Driven coupling Pilot FR
7 /
4/7 E PEPE
Sun gear Planet gear
| QA
Snap ring
ей ou
Input shaft
1 Na E
7% DD edd Snap ring
NN A Bearing cage
LLL : — Snap ring
hee “emo N
NN Planet carrier Thrust sus O-ring
Illust. 32. Cross section = side view of creeper drive assembly.
6. A snap ring holds the ball bearing
outer race in the retainer. Remove the
snap ring then push the bearing and shaft
from the retainer,
7. The ball bearing is held on the shaft
by a snap ring, Remove the snap ring. The
shaft can now be pressed from the bearing,
8, Press the oil seal from the bearing
9. Drive the shift poppet pin from the
shaft and remove the poppet,
10. Shift the lever and shifter collar to-
ward the rear of the case and at the same
time lift the shifter collar up to disengage
it from the shift yoke.
EER Breather
No shin
lever Shifter collar
Shift yoke
Pin Eu O-ring
РЕА-7 5109
lust. 33. Cross section = end view of creeper shifting components.
11, Drive the pin out of the shift yoke and
lever shaft,
12. Slide the lever shaft from the yoke
and housing,
13. Remove the O-rings from the shaft,
housing and bearing retainer,
14, Wash all parts in cleaning solvent
then dry thoroughly,
Inspection and Repair
1. Check the input drive shaft for oil
seal groove wear, worn or chipped teeth on
the integral gear and pilot bushing wear on
the rear end,
2. Check the splines of the direct drive
coupling, planet carrier and the shifter
collar for wear and chipping.
3. Check the housing for cracks and the
integral sun gear for wear and broken
4, Inspect the ball bearing for pitting,
scoring, wear and rough operation,
Reassembly is basically the reverse of
disassembly however, particular attention
should be given the following:
1. Always use new O-rings, gaskets and
oil seals. O-rings and oil seals should be
coated with lubriplate or chassis lubricant
to assist in installation and provide initial
2. Install the oil seal after completing
the drive assembly in the housing,
3. The pins which secure the direct
drive coupling and the driven coupling to
their respective shafts must be flush or
below the spline groove so as not to inter-
fere with shifting,
4, The long internal splines of the shift-
er collar go toward the rear,
5, The machined shoulder of the direct
drive coupling goes toward the planet car-
6. Lubricate the components and rotate
the drive shaft several turns with the shift-
er in each speed selection to insure freedom
of movement and rotation,
l, Place a new gasket on the mounting
face of the creeper housing. The dowels
will hold it in place,
2. With the shifter collar in its rear po-
sition, rotate the drive shail so the collar
will engage the driven coupling as the dow-
els engage the reduction cover plate and the
drive shaft enters its pilot bushing in the
driven coupling,
3. Secure the creeper to the reduction
housing cover plate,
4, Fill the creeper housing to proper
level (check plug on side of housing) with
the same lubricant as specified for the
transmission - differential. Hy-tran fluid
or SAE 30 Engine oil.
5. Shift the unit several times to insure
freedom of movement. Leave the shifter
lever in its forward position for re-coupling
the split tractor,
6. Reassemble the split tractor,
important: Information in this manual section is subject to change or supple-
menting from time to time as a result of field experience and engineering modifi-
cations, As Service Bulletins are received, record them on this page for handy
reference whenever this manual is to be used, . .Print entries in ink,
Bulletin Date Book
3 No. Issued No. Topic or part of machine involved,
| : :
= in service
GSS-1349 OCTOBER 1963 Printed in United States of America
Creeper input shaft
é О
Reduction drive shaft Co
y O Reduction
| gear off ©
2a - Oil passage
0 |
| attachm
Transmission main shaft О
LE or 7) — +
x О | AS A
E FR a A —— | | Соуег
| (4 > BI, Counter shaft
/ / я - f — wr T = q = Ni
// 3 ee
Brake lining
lllust. 3. Cross section — power train.
Clutch driving disc
t shaft Г” | Г
ай Coupling O
ed Pressure plates. | Bushing
N NT о
NY <a Clutch shaft
oo rR Le ez i
© e Y ST | ; 10000000000000000 CONE} Z =
и i ME
3 E We 1 — "000000000000 00000 Cha Y =
Els Snap ring Release Y
<> beari N |
age FES E # earing 8
Creeper :
attachment E
LA pau Sa.
Cover plate Clutch adjusting nut
Brake disc |
Clutch drive plate
№ г 8 Brake adjusting screw
Clutch driving disc
Creeper input shaft
Reduction drive shaft Pressure plates
Clutch shaft
Snap ring
Oil passage
Transmission main shaft
Cover plate
Brake disc
Clutch adjusting nut
Counter shaft
Clutch drive plate
Brake adjusting screw
lllust. 3. Cross section — power train.
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