Simplicity 707 Lawn Mower User Manual

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OWNER'S MANUAL
5777 SICKLE BAR
SIMPLICITY MANUFACTURING COMPANY, INC.
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TO THE OWNER
You have made a wise choice in selecting the Simplicity 57" Sickle Bar Mower. It has been specially designed for your Sim
plicity tractor, and constructed to give lasting superior performance.
Before attempting to operate the sickle bar mower, study this manual and the manual for your tractor thoroughly. Pay speciz
attention to the safety rules in this manual, as well as the tractor owners manual. Your Simplicity equipment is designed witl
your safety in mind, but it is up to you to be an alert, safety conscious operator. Be sure anyone else who may operate th:
mower is familiar with the operation and safety instructions.
Your Simplicity equipment requires a minimum of care. Following the maintenance instructions carefully will assure you o
maximum satisfactory service. Thank you for taking the time to read this manual. The time spent will pay big dividends in th
extra time saving performance you receive from your Simplicity Sickle Bar Mower.
When ordering replacement parts for the mower, be prepared to give your: Simplicity dealer the identification number fount
on the identification plate shown below. It is located on the frame assembly of the mower (Figure 7, Item E). We suggest tha
you locate the number and record it below for easy reference. -
SIMPLICITY MANUFACTURING. CO. INC. I
a PORT WASHINGTON, WIS., U. sg. A. >
Refer to I.d. no. when
writing or ordering parts.
IDENTIFICATION PLATE
SIMPLICITY NEW EQUIPMENT WARRANTY
The Company warrants Simplicity products to be free from defects in material and workmanship, except the Company
makes no warranty, express or implied, with respect to tires, engines, generators and voltage regulators, which are
warranted by their respective manufacturers. Any part covered by this warranty which is proven defective within one
year (6 months for equipment used for rental, municipal or commercial purposes) under normal use, from date of
purchase, will be replaced without charge, provided such part is returned to the factory, (if requested), and is found to
be defective upon examination at the factory. This warranty does not apply to any Simplicity products altered outside
of the Simplicity factory. THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, PERFORMANCE, OR
OTHERWISE. The Company's obligation under its warranty is strictly and exclusively limited to the replacement of
such parts, and in no event shall the Company be liable for any other damages, whether direct, immediate, incidental,
special, or consequential. Simplicity Manufacturing Company, Inc, reserves the right to modify or change specifications
without prior notification. There are no warranties which extend beyond the description of any Simplicity product.
TABLE OF CONTENTS
SAFETY PRECAUTIONS
REQUIRED ACCESSORIES AND OPTIONS
RECOMMENDED ACCESSORIES AND OPTIONS
INSTALLATION
REMOVING THE MOWER
OPERATION
PREPARING THE SICKLE BAR MOWER
LOWER THE CUTTER BAR |
POSITION THE DIVIDER BOARD
ADJUST CUTTING HEIGHT SKIDS
TRANSPORTING THE SICKLE BAR MOWER
OPERATING THE TRACTOR AND SICKLE BAR —
SELECTING TRANSMISSION GEAR |
ENGINE SPEED SETTING
CONTROLLING CUTTER BAR ANGLE
ENGAGING THE MOWER DRIVE
CONTROLLING GROUND SPEED
CUTTER BAR BREAK-BACK RELEASE
MOWING PATTERN
ADJUSTMENTS
MOWER DRIVE BELT TENSION ADJUSTMENT
TROUBLE SHOOTING GUIDE
SICKLE KNIFE DRIVE BELT ADJUSTMENT
CUTTER BAR BREAK AWAY ADJUSTMENT
SICKLE BAR REGISTER ADJUSTMENT
MAINTENANCE
ORDERING REPLACEMENT PARTS
AFTER EACH USE
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AFTER EACH HOUR 10
EVERY 5 HOURS 10
OUT OF SERVICE PROTECTION (STORAGE) 10
REMOVING THE SICKLE KNIFE ASSEMBLY 10
SPECIFICATIONS 10
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~~ SAFETY PRECAUTIONS TO PROTECT YOURSELF AND OTHERS
Read and become familiar with the owner’s manual for your
tractor and the sickle bar mower before operating the mower.
Do not allow anyone to use the mower unless they have been
instructed in how to operate it safely.
Never attempt to adjust, repair, or service the mower while
the tractor engine is running.
Do not allow others near the mower while it is operating.
Stay clear of all mower drive belts and pulleys when the trac-
tor engine is running.
Be sure the sickle bar has stopped turning before attempting
to adjust, repair, or service the mower.
CAUTION: THE SICKLE BAR MAY CONTINUE TO OP-
ERATE A FEW SECONDS AFTER THE CLUTCH HAS
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BEEN DISENGAGED, AND THE ENGINE iS SHUT OFF.
Mark clearly or remove from the area to be mowed any ob-
jects which might be caught in, or be struck by the sickle
bar. :
Disengage power to the mower, and stop the engine before
leaving the operator's position.
Operate the mower only in daylight, or good artificial light.
Be especially careful when working around the cutter bar.
The cutting edges are very sharp, and can cause injury.
Use caution when operating on a sloping surface.
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To prevent the operator from being struck by the divider
board, always lock it in the forward position before raising
the sickle bar above 450 for transport.
L-
MFG. NO. 707 57” SICKLE BAR MOWER
Figure 1. Installing the hitch for mid-mounted attachments.
REQUIRED ACCESSORIES AND OPTIONS
Hitch assembly for Mid-Mounted Attachment
RECOMMENDED ACCESSORIES AND OPTIONS
Rear wheel weights give added traction and stability when
operating on slopes. Rear agricultural or high flotation tires
give better traction and allow sharper turns than turf tires.
INSTALLATION
1. See figure 1. Use four pins (A) and spring clips (B) to
mount the hitch for mid-mounted attachments as shown.
2. See figure 2. The left lift cable is shown in its storage po-
sition. Remove the springclip and pin at (A) and use them to
attach the cable to the rocker arm assembly as shown at item
(A) in figure 4. |
3. See figure 3. The right lift cable is shown as it should be
stored, when not in use. See your Simplicity dealer for in-
Figure 2. The left lift cable fastened in its storage position.
Figure 3. The right lift cable fastened in its storage position.
structions if this longer, heavier cable has not been installed
on your tractor. Remove the spring clip and pin at (A) and
use them to fasten the lift cable to the rocker arm assembly
at (B) in figure 4.
4. See figure 5. Slide the mower under the tractor from the
right side and position it as shown. CAUTION: BE CARE-
FUL WHEN HANDLING THE MOWER NOT TO TOUCH
THE BLADES OR GUARDS ASTHEY ARE VERY SHARP.
5. See figure 6. The lift cable should be fully extended as
shown in figure 6. If it is not extended as shown, start the
engine and move the hydraulic control lever forward to
lower the cable fully. CAUTION: DO NOT OPERATE THE
TRACTOR ENGINE UNLESS YOU ARE IN THE OPERA-
TOR'S POSITION ON THE TRACTOR AND SHUT IT
OFF BEFORE LEAVING THE TRACTOR SEAT. Raise the
left end of the mower slightly, and attach the left lift cable
at (A) as shown using the pin and spring clip furnished with
the sickle bar mower. This can be done most easily by placing
Figure 4. Lift cables attached to rocker arm assembly.
Figure 5. The mower in position under the tractor.
a block (B) approximately 4” high under the left end of the
sickle bar to hold it up while the cable is being attached.
Push the clip all the way through the hole in the pin.
6. See figure 7. Start the tractor engine and use the hydrau-
lic lift lever to raise the mower so its mounting holes line up
- with the holes in the hitch assembly. Use two pins and spring
clips at (A) to mount the mower to the hitch assembly.
7. Use the tractor hydraulic lift lever to raise the tractor lift
to its highest position. Remove the block (Figure 6, Item B)
from the left side of the mower and place it under the sickle
bar as shown at (B) in figure 7. Lower the tractor lift system
completely.
8. See figure 7. Remove wing nut (C) and cover (D) from
the mower.
9. See figure 8. Remove the spring clip and pin (A) and pul-
ley (B) from the mounting bracket. Place the right lift cable
(C) under the pulley and install the pulley in place using the
pin and spring clip. Extend cable (C) all the way and fasten
it to the lift arms (D) using a pin and spring clip (E). The pin
should be placed in the hole as far from pulley (B) as possi-
ble, so the cable is snug when the sickle bar is level. To pre-
vent it from catching on the mower frame, pin (E) must be
installed as shown with the head end toward the rear of the
Figure 6. The left lift cable attached to the mower.
Figure 7. Mower mounted to hitch assembly.
mower. Several holes are provided to compensate for any
variation in mower parts or length of the cable.
10. See figure 7. Replace cover (D) and hand tighten wing
nut (C) securely. |
11. See figures 9 and 10. Raise the tractor hood and feed the
mower drive belt over the engine front power take off pulley
and down around the idler pulleys located in the hitch as-
sembly. Be sure the belt “V” is in the pulley grooves and
twisted correctly as shown. |
12. Be sure the belt tightening handle is pulled forward in
the release position as shown in (Figure 1, Item C) then place
the drive belt over the mower pulley.
13. See figure 11. Push the belt tightening handle (A) down
and back to tighten the belt.
14. Check the distance between the set collar and rod guide
as shown in figure 11. If the distance is not 1/2" to 5/8"
adjust the belt tension as explained on page 7 of this manual.
15. See figure 9. Check the belt at point {A) to insure that
it is at least 1/4” away from the tractor frame and battery.
If it is not, adjust the left idler pulley according to the in-
structions on page 7 of this manual under Mower Drive Belt
Tension Adjustment.
Figure 8. Right lift cable attached to mower.
Figure 9. Mower drive belt over engine pulley.
16. See figure 12. After insuring the divider board (A) is in
the transport position (Position the Divider Board on page 5)
raise the cutter bar (B) and install the transport chain (C) as
shown. Use a pin and spring clip at (D) to fasten the trans-
port chain to the mower frame. Place the hook in the square
tube. To help prevent the sickle bar from bouncing during
transport, place the pin at (D)in the link as close to the hook
as possible so the sickle bar is held near vertical. CAUTION:
WHEN RAISING THE CUTTER BAR, GRASP IT AT THE
OUTER SKID SHOE, OR THE BACK OF THE CUTTER
BAR. DO NOT ALLOW YOUR FINGERS TO GET BE-
TWEEN THE CUTTING EDGES AND THE GUARD
WHERE THEY COULD BE INJURED. THE KNIVES MAY
MOVE AS THE SICKLE IS RAISED.
REMOVING THE SICKLE BAR MOWER
CAUTION: BEFORE ATTEMPTING TO ADJUST SER-
VICE OR REMOVE THE MOWER, BE SURE THE ENGINE
IS SHUT OFF, THE PARKING BRAKE SET, AND THE
SICKLE KNIFE HAS STOPPED MOVING.
Figure 10. Mower drive belt in place.
Figure 11. Mower drive belt in place and tightened.
1. Position the tractor on a level surface with enough room
on the right, so the cutter bar can be lowered. Shut off the
tractor engine and set the parking brake.
2. Push the tractor hydraulic control lever forward to the
FLOAT position.
3. See figure 12. Unhook transport chain (C) and lower the
cutter bar (B) to the ground.
4. See figure 11. Pull the belt tightening handle (A) forward
to release the belt tension.
5. Remove the belt from the mower pulley, idler pulleys,
and power take off pulley.
6. See figure 7. Use the tractor hydraulic lift lever to raise
the mower. Place a block (B) under the sickle bar as shown.
Place the hydraulic lift lever in the FLOAT position.
7. See figure 7. Remove wingnut (C) and cover (D) from the
mower.
8. See figure 8. Remove the spring clip and pin at (E) and
the spring clip and pin at {A) to disconnect the right lift
cable from the mower. Replace the pins and spring clips in
their appropriate holes and replace the cover and wing nut.
(Figure 7, Items C and D).
9. Raise the tractor lift completely and remove the block
(Figure 7, Item B) from under the sickle bar.
10. Using the hydraulic lift control lever, lower the mower
gradually until the pins (Figure 7, Item A) are free and then
remove them.
11. See figure 6. Place block (B) under the mower, then push
the tractor hydraulic control lever to the FLOAT position.
Remove the spring clip and pin at (A) to disconnect the left
lift cable from the mower.
12. See figure 5. The mower is now disconnected and can
be removed from beneath the tractor.
13. See figure 13. If the tractor is to be used with the 60”
mid-mounted mower, the mower can be installed as shown.
The brackets and pulley (A) furnished with the sickle bar
are installed on the mower to compensate for the extra
length cable used with the sickle bar mower. If the tractor
is to be used without the mid-mounted mower complete
steps 14 and 15.
14. See figure 4. Remove the spring clips and pins to dis-
connect the lift cables from the lift arms at (A) and (B).
Use these pins and spring clips to fasten the cables in their
respective storage positions as shown in figures 2 and 3.
Figure 12. Sickle bar and divider board in transport position.
15. See figure 1. Remove the spring clips (B) and pins (A)
and remove the hitch for mid-mounted attachments from
the tractor. —
OPERATION
PREPARING THE SICKLE BAR MOWER
DO THE FOLLOWING:
1. Read this manual and the owners manual for the tractor
carefully. Be sure you are familiar with the safety precau-
tions, controls, and operating instructions.
2. Check the sickle bar mower carefully to be sure that it is
Figure 13. The 60 mid-mounted mower attached using the
longer right lift cable used with the sickle bar.
Figure 14. Mower in operating position.
properly installed. See page 2.. | |
3. Lubricate the mower according to the maintenance in-
structions on page 10.
4. Remove from the area to be mowed or mark clearly any
objects which may be caught or run into by the sickle bar.
LOWER THE CUTTER BAR
- With the tractor engine shut off, and the parking brake set,
unhook the transport chain (Figure 12, Item C) from the
cutter bar and lower the cutter bar so it is supported at a
450 angle. Remove the spring clip and pin (Figure 12, Item D)
and remove the transport chain from the mower. To prevent
the transport chain from being caught in the cutter bar, or
the mower drive it should be stored away from the mower.
It can be wrapped around the draw bar as shown in Figure 4,
Item C and the pin and spring clip used to hold it in place.
Push the hydraulic iift control lever forward to the FLOAT
position to lower the cutter bar to the operating position
as shown in figure 14.
POSITION THE DIVIDER BOARD
See figure 15. Remove the spring clip and pin at (A) and
Figure 15. Divider board in transport position and skid shoe
positioned to give lowest cutting height.
Figure 16. Divider board in operating position and skid shoe
set for medium cutting: height,
lift the divider board (B) back to position as shown in figure
16. The pin and spring clip. removed should not be stored in
the divider board assembly where they may collect grass, but
should be stored with the transport chain. The pin may be
placed through a link and.the spring clip used to hold it in
place and prevent it from. being lost.
ADJUST CUTTING HEIGHT. SKIDS |
The two height adjusting skids,. located : at t either end of the
cutter bar assembly can be adjusted to give three cutting
heights, approximately 2-3/4", 3-1/2", and 4-1/4". Figure
15 shows the outer skid shoe (C) adjusted to give the lowest
cutting position. Notice that the skid shoe is turned so that
the U portion (D) of the bracket is facing forward. The skid
shoe should be turned in this manner when used in the low
cutting position. Figure 16 shows the skid shoe adjusted to
give the medium cut height. Notice that the U portion (A)
of the skid shoe is toward the rear. It should be positioned
in this manner when the skid shoe is adjusted for the med-
‘lum and high cut. The skid shoe is adjusted by removing the
two spring clips and pins and placing them through the’ ap-
propriate holes. When replacing the spring clips, always push
them all the way through the hole in the pin to prevent them
from being pulled out during use. |
The inner skid shoe (G) is shown in: figure 17. It should be
“adjusted in the same set of holes to give the same cutting
height as the outer skid shoe, so the height of cut will be
uniform. To adjust it, remove the spring clips and pins (A)
and place them through the appropriate set of holes. When
replacing the spring clips, always push them all the way
through the holes in the pins to prevent them from being
pulled out. To make adjustment of the skid shoes most
easily, place a block under the sickle bar, then lower it to
the block. This will keep the skid shoes off the ground for
easy adjustment, yet prevent the sickle bar from falling and
causing injury.
TRANSPORTING THE SICKLE BAR MOWER
The sickle bar mower may be transported short distances,
such as across a field, with the cutter bar raised at an angle -
as shown in figure 18 by using the tractor hydraulic lift
-
Figure 17, Sickle bar sections lined up when section adjust-
ment is correct.
system. If the mower is to be transported greater distances,
or over rough ground, the divider board should be locked
forward using the pin and spring clip (Figure 15, Item A),
and the cutter bar raised to the vertical position and held
with the transport chain (Figure 12, Item C). The tractor
hydraulic lift lever should be pulled back to raise the mower
anytime it is being transported.
Any combination of the three range transmission, hydrosta-
tic transmission control lever, and the engine speed control
may be used in transporting the sickle bar mower. Ground
speed should be adjusted according to the type and condi-
tion of the ground surface. CAUTION: REDUCE SPEED
OVER ANY AREAS WHICH ARE ROUGH OR WHERE
THERE ARE OBSTACLES ON WHICH THE CUTTER
BAR MIGHT CATCH.
OPERATING THE TRACTOR AND SICKLE BAR
SELECTING TRANSMISSION GEAR
The tractor three range transmission can be placed in second
gear for most operating conditions, and the hydrostatic
transmission control lever used to regulate ground speed.
In large smooth fields, or when some distance must be
Figure 18. Mower in short distance transport position.
traveled across ends between passes, the third range may be
desirable. It will allow the operator to travel faster if mowing
and ground surface conditions permit, yet the tractor can be
easily slowed by using the hydrostatic transmission control
lever.
ENGINE SPEED SETTING
‘The engine should be operated at 1/2 to full speed when
using the sickle bar mower. If the material to be mowed is
light and the ground speed slow (less than 3 MPH), 1/2 en-
gine speed may be enough. When cutting heavier material
or when ground speed is faster, theengine must be operated
at higher speeds so the sickle knives cut all the material.
CONTROLLING CUTTER BAR ANGLE
When it is desirable to raise the cutter bar to lift it over ob-
jects, or for transporting short distances, the tractor hydrau-
lic lift lever should be pulled back to the raised position. The
cutter bar can be raised to an angle of approximately 45 de-
grees. It is not necessary to disengage the mower drive when
raising the cutter bar in this manner, for a minute or less.
ENGAGING THE MOWER DRIVE
The mower drive should only be engaged when the cutter
bar is lowered to an angle of 45 degrees or closer to the
ground. DO NOT OPERATE THE MOWER WHEN IT IS IN
THE VERTICAL TRANSPORT POSITION. After the en-
gine has been started, the mower may be engaged by push-
ing the front clutch switch forward to the ON position.
CONTROLLING GROUND SPEED
Ground speed can be easily and quickly controlled by using
the tractor hydrostatic transmission control lever. The best
ground speed will vary greatly with the type of terrain and
the amount and type of material being cut. For most condi-
tions, 3-4 MPH will be a good starting speed. Refer to the
operation chart in the operation section of the 4040 tractor
owners manual for approximate control settings to achieve
these speeds. CAUTION: BE PARTICULARLY CAREFUL
AND OPERATE AT LOW GROUND SPEED ON SLOPES
OR IN ANY AREA WHERE THE CUTTER BAR MAY
STRIKE SOLID OBJECTS WHICH MIGHT CAUSE THE
TRACTOR TO BE JARRED. GROUND SPEED CAN
EASILY BE VARIED FOR MAKING TURNS, TRAVEL-
ING AROUND ENDS, AND VARYING MOWING CONDI-
TIONS BY USING THE HYDROSTATIC SPEED CON-
TROL LEVER. |
CUTTER BAR BREAK-BACK RELEASE
The cutter bar is mounted to the mower frame so it can
pivot or “break-back” if a solid object is struck. This mech-
anism helps protect the mower as well as the operator. If the
cutter bar should break away while you are using it, stop the
forward travel of the tractor, then disengage the mower
drive by moving the FRONT CLUTCH switch to OFF.
Back the tractor slowly and the cutter bar should snap back
into operating position. If it does not, or if the cutter bar
may have been damaged, stop the engine, set the parking
brake and inspect the cutter bar. Adjustment of the break-
back mechanism is explained on page 8.
MOWING PATTERN
The size and type of area to be mowed determine the best
mowing pattern. Obstructions such as trees, fences, and
buildings, must also be considered. In general, when using a
sickle bar mower, it is desirable to go one round counter-
clockwise around the area to be mowed to mow the grass
next to fences, buildings and so forth. After this first round,
the remainder of the mowing should be done in a clockwise
direction so that the tractor wheels do not run over the un-
cut area. In a rectangular area, which may be nearly square,
it is usually most effecient to mow all four sides of the area.
In a long narrow field it may be easier and quicker to mow
only the two long sides of the field and drive along the ends
with the sickle bar slightly raised.
Turning corners when using a sickle bar mower can be done
either of two ways. A sharp right turn may be made at each
corner so that the sickle bar swings back and immediately
begins cutting the next side of the field. Making corners in
this manner requires some practice and the tractor steering
brakes must be used individually. See the tractor owners
manual. When approaching a corner, use the hydrostatic
speed control lever to slow the tractor ground speed. Turn
the tractor steering wheel quickly to the right and press the
right brake pedal to bring the tractor around the corner
sharply. After completing the turn, return the hydrosta-
tic speed control lever to the original position.
Since the cutter bar of the Simplicity sickle bar mower can
be easily raised using the tractor hydraulic system it may of-
ten be desirable to make corners by making a tight left turn
at the end of each mowing strip. As soon as the cutter bar
completes cutting a strip, raise it slightly to bring it above the
cut material so it does not plug the guards, and make a tight
left turn of 270 degrees and bring the tractor alongside the
next side of the unmowed area. Using the left wheel brake
will aid in making a sharper turn. Making corners in this man-
ner will normally be neater, and is a little easier to do than
making sharp right hand turns. |
ADJUSTMENTS
MOWER DRIVE BELT TENSION ADJUSTMENT
See figure 19. Tension on the mower drive belt is checked
by measuring distance (A). The distance should be 1/2" to
5/8” when the belt is properly installed and the belt tighten-
ing handle (B) is pushed down and back in the tightened po-
sition. 1f belt tension requires adjustment, proceed as fol-
lows:
1. See figure 19. Release tension on the drive belt by pulling
forward and up on the belt tightening handle (B).
2. See figure 19. Loosen the screw in set collar (C), and pull
rod (D) forward so more of it is exposed to increase belt
tension or push the rod back to decrease belt tension.
3. Tighten the screw in set collar (C).
4. Tighten the belt and check the belt tension distance. (Fig-
ure 19, Item A).
5. See figure 9. Check the distance at (A). There should be
at least 1/4’ clearance between the belt and the tractor bat-
tery and frame. If there is not, proceed as follows:
a. Pull the belt tightening handle (Figure 19, Item B) for-
ward to release belt tension.
b. See Figure 1. Loosen capscrew (D) so idler pulley (E)
can be moved forward or rearward in the slot.
c. Move idler pulley (E) forward or rearward as required
to center the belt between the tractor frame and bat-
tery (Figure 9, Item A). Moving idler pulley (B) for-
TROUBLE SHOOTING GUIDE
PROBLEM OR SYMPTOM
POSSIBLE CAUSES
CHECKS AND CORRECTIONS
Mower cuts unevenly.
Cutter bar not lowered completely.
Skid shoes not adjusted for same
height.
Place tractor hydraulic lift lever in FLOAT
position.
Adjust skid shoes. See page 6.
Rough looking cut - or grass
being pulled out by roots.
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Engine speed too slow.
Ground speed too fast.
Knife edges dull.
Increase engine speed.
Reduce ground speed.
Replace sickle knives.
Cutter bar does not raise high
enough (459) using tractor
hydraulic lift.
Right lift cable not in correct
lift bracket hole.
Adjust lift cable. See page 3, Item 9.
Cutter bar breaks back too
easily.
Ground speed too fast.
Break-back latch not correctly
adjusted.
Reduce ground speed.
Adjust break-back latch. See page 8.
Cutter bar does not break-
back when solid object is hit.
Break-back latch not lubricated.
See Figure 8, Item F.
Break-back latch not properly
adjusted.
Lubricate latch.
Adjust break-back latch. See page 8.
Sickle knife wear plates badly
Replace wear plates.
Sickle knife noisy or vibrates
excessively, worn.
Sickle knife clips badly worn.
Replace clips.
Tractor handles poorly.
sloping ground.
Tires not properly inflated.
— Traveling too fast on rough or
Not using recommended weights.
Inflate tires according to tractor
owners manual.
Reduce speed.
Use rear wheel weights.
ward will move the left side of the belt closer to the
battery and farther from the frame, but will move the
right side of the belt away from the battery and closer
to the frame.
d. See figure 1. Tighten capscrew (D) securely to prevent
idler pulley (E) from moving out of adjustment. Cap-
scréw (D) should be torqued to 50 foot pounds.
e. Repeat steps 1 through 4 to readjust the belt tension.
SICKLE KNIFE DRIVE BELT ADJUSTMENT
See figure 20. Tension on the sickle knife drive belt is checked
by measuring the length of spring (A). With the drive belt
. installed the spring should be 3” to 3-1/4" long. If the spring
length is not within this range readjust it as follows:
1. See figure 20. Loosen the set screw in collar (B) slightly
so that the set collar can be moved on rod (C).
2. Push rod (C) to the right and set collar (B) to the left to
compress spring (A). When spring (A) is compressed to 3”,
tighten the set screwin collar (B) to hold it in place.
3. After tightening the set screw in collar (B) check the
length of spring (A) to see that it is correct. If it is not 3" to
3-1/4” in length repeat steps 1 and 2.
CUTTER BAR BREAK AWAY ADJUSTMENT
See figure 20. The cutter bar is hinged on the mower frame,
so it can swing to the rear if a solid object is struck while
mowing. The amount of force on the cutter bar required to
operate the brake away mechanism is controlled by the
length of spring (D). A good starting adjustment for spring
(D) is 5” to 5-1/4”. If the cutter bar breaks away too easily,
such as when mowing but no solid object is struck, or does
not break away easily enough, adjustment can be made as
follows:
1. See figure 8. Coat the latch assembly (F) with a film of
grease so it is free to slide. CAUTION: THE LATCH AS-
SEMBLY MUST BE KEPT COATED WITH GREASE SO
THAT IT IS FREE TO OPERATE FOR THE CUTTER
BAR BREAK AWAY MECHANISM TO OPERATE EF-
FECTIVELY. :
2. See figure 20. To adjust the break away mechanism so the
Figure 19. Belt tightening adjustment located on front hitch
assembly.
cutter bar will break away more easily, turn nut (E) counter-
clockwise to increase the length of spring (D). Ifit is desir-
able to adjust the break away mechanism so more force is
required before it will swing back, turn nut (E) clockwise to
decrease the length of spring (D). CAUTION: DO NOT
OVER TIGHTEN THE BREAK AWAY MECHANISM.
NEVER TURN NUT (E) MORE THAN 2 COMPLETE
TURNS CLOCKWISE WITHOUT TESTING THE CUTTER
BAR TO SEE [FIT WILL STILL BREAK AWAY. THE
BREAK AWAY MECHANISM MUST OPERATE TO PRO-
VIDE OPERATOR SAFETY AS WELL AS PREVENT
DAMAGE TO THE MOWER.
SICKLE BAR REGISTER ADJUSTMENT
See figure 17. To operate most efficiently, the sickle knives
(B) must center in the guard (C) as shown, when the sickle
drive mechanism is turned so that the sickle knife is as far to
the right as it will go. If adjustment is required, proceed as
follows:
1. See figure 17. Rotate the mower drive mechanism by
hand turning the drive pulley until the sickle knife is as far
to the right as it will go. CAUTION: USE CARE WHEN
WORKING AROUND THE CUTTER BAR ASSEMBLY.
THE KNIVES AND GUARDS ARE VERY SHARP.
2. Remove capscrew (D) and raise bearing housing (E) out
of the sickle head assembly (F). Be careful not to allow the
washers on either side of the bearing housing (E) to fall out
of place.
3. Move the sickle knife (B) until it is ined up as shown with
the nearest guard (C).
4. Turn bearing housing (E) clockwise, or counterclockwise
as required toline it up with the sickle knife head (F} so cap-
screw (D) can be inserted without moving either the mower
drive mechanism or the sickle knife (B). NOTE: BUSHING
‘ASSEMBLY (E) WILL HAVE TO BE TURNED FULL
REVOLUTIONS SO THAT GREASE FITTING (H) IS ON
TOP WHEN IT IS REASSEMBLED.
5. Install capscrew (D) and tighten the nut securely.
Figure 20. Sickle knife drive belt and cutter bar break away
adjustments. E.
MAINTENANCE
ORDERING REPLACEM ENT PARTS
Replacement parts required for performing maintenarice
services or repair work should be purchased from your
Simplicity ‘dealer. When ordering parts be prepared to give .
him the identification number of your. sickle bar mower
If you have not already recorded this number on the inside:
front cover of this manual, we suggest that you dos so now,
for convenient future reference. . -
AFTER EACH USE | | Co
Inspect the sickle bar mower thoroughly, looking for any
loose or missing bolts, pins, or spring clips; or worn, or
damaged parts. Clean or repair the sickle bar mower as. needed -
~ to insure that it is ready to use the next time you need it.
Figure 21. Cutter bar lubrication points.
AFTER EACH HOUR
To get maximum life and smoothest operation from the
sickle knife, a few drops of engine oil should be placed on
it and the wear plates about once each hour of operation
(Figure 16, Item C).
EVERY FIVE HOURS
A multi-purpose lithium soap base grease designed to operate
at high temperatures must be used in the lubrication of your
sickle bar mower. This grease is available from your Sim-
plicity dealer. See figure 21. The five grease fittings (A)
should be lubricated until grease is seen forced from the
bearings. Grease fitting (B) should be lubricated with about
five shots or until the grease is seen forced out of the as-
sembly, whichever occurs first. |
A film of grease should be placed on the break away latch,
(Figure 8, Item F).
A few drops of engine oil placed on pivot points and wear
surfaces will help reduce wear. Some of the most important
ones are listed below:
Hitch Assembly Mounting Pins
Mower Mounting Pins
Rod and Guide
Cutter Bar Pivot
Figure 1, Мет А
Figure 7, Item A
Figure 19, Item A
Figure 21, Нет С
OUT OF SERVICE PROTECTION (STORAGE)
1. Remove the sickle bar mower from the tractor. See page 4.
2. Use water under pressure and a brush to thoroughly clean
the sickle bar mower of any build-up of dirt or other ma-
terial. | |
3. Cover any area where paint has been worn or chipped
away with paint or a light coat of oil.
4. Lubricate the sickle bar mower according to the every
five hour maintenance service.
5. Store the mower in a dry place.
REMOVING THE SICKLE KNIFE ASSEMBLY
If it should be necessary to remove the sickle knife for re-
Figure 22. Removing sickle knife assembly.
placement or repair, proceed as follows:
1. See figure 22. Remove the nut, lock washer, and capscrew
at {A), and lift bearing housing (B) out of the way.
2. Remove the five capscrews (C) and lift the sickle head (D)
out of the way.
3. Slide the sickle knife outthe right (outer end) of the cutter
bar.
4. When replacing the sickle head, capscrews (C) should be
torqued to 19-22 foot pounds to prevent them from coming
loose. Be careful not to over tighten these capscrews as the
threads may be stripped out of the sickle knife assembly.
5. Place bearing housing (B) in position between the sickle
head (D).
6. Make certain that the washers are in place on each side
of bearing housing (B), then install the capscrew, lock washer,
and nut at (A) and tighten the nut securely. Recheck regis-
ter. See page 9.
SPECIFICATIONS
Slope Mowing Angle
Effective Width
Cutter Bar Mounting
Pitman Bearing
Mower Drive
Up 45° - Down 300
57°
Easy reset, spring loaded break-away
Heavy duty rolling contact
V-Belt from tractor front PTO
4-pinion planetary gear drive
Speed Reduction
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
LD implicily
~ MFG. NO. 707 57” SICKLE BAR
MFG. NO. 944 HITCH ASSEMBLY
PARTS CATALOG |
SER. FORM - 178425
FT LLP сон о Оо A
MFG. NO. 944 HITCH ASSEMBLY
"Belt -
172420
Ref.
No.
an —
Part No.
177010
171641
715143
719002
170291
153052
720002
174435
177014
719002
717510
171640
154325
717521
171624
719001
154177
717524
122005
177004
177204
163103
105201
713001
153081
159134
719001
717510
112052
176012
102004
106788
727013
108418
108412
719004
718035
Qty.
Req.
pd pd pd
ad pd pued ed fd fd fed pd pd pd pd ped BN) bead bed ped pd pd fund fed ped b= BN) ве) (Л
pd pt pt bet pet By DD NS
Description
Support Assembly
Pulley
Hex Capscrew,
3/8-24 x 1-3/4"
Plain Washer, 5/16
Spacer
Washer
Lock Washer, 3/8
Special Nut, Flange
Lever Assembly
Plain Washer, 5/16
Hex Nut Lock, 3/8-16
Pulley
Washer
Hex Nut Centerlock, 1/2-13
Lever Assembly
Plain Washer, 3/8
Spacer
Jam Nut, 3/8-16
Knob
Rod Guide Assembly
Eye Bolt
Spring
Set Collar
Set Screw, 1/4-20 x 3/8
Spacer
Special Washer
Plain Washer, 3/8
Hex Nut, Full Lock,
3/816
Yoke Pin
Safety Spring Clip
Pivot Pin
Hair Pin Clip
Crease Fitting
Screw
Shoulder Bolt
Washer Plain, 1/2
Nut Flange, 3/8-16
HITCH ASSEMBLY
SEE LAST PAGE FOR
ASSEMBLED VIEW
HITCH ASSEMBLY
Ref. Qty.
No. Part No. | Reg. Description
1 173470 1 Support Assembly
2 173650 1 Side Frame Assembly
3 174440 1 “V” Belt
4 112052 2 Yoke Pin
5 106788 2 Spring Clip
6 173525 1 Pulley
7 173607 1 Pulley
8 715155 3 Hex Washer Head Screw,
5/16” -18 x 5/8"
9 717030 1 Nut, 3/4" -10
10 174742 1 Rod
11 173101 1 Spacer
12 108202 2 Ball Bearing
13 173100 1 Spacer
14 173019 1 Spacer
15 717536 1 Center Lock Nut
16 154487 1 Hub Cap
17 173097 1 Spacer
18 715108 1 Hex Head Capscrew
19 720004 1 Lockwasher, 1/2”
20 717006 1 Full Hex Nut, 1/2” - 15
21 705048 1 Hex Head Capscrew
22 719003 1 Plain Washer, 7/16"
23 173099 1 Spacer
24 720004 1 Lockwasher, 1/2"
25 717006 1 Full Hex Nut, 1/2” -13
26 173580 1 Latch Assembly
27 722006 1 Cotter Pin, 1/8" x 1"
28 173657 1 Rod
29 173658 1 Spring
30 719006 2 Plain Washer, 1/4"
31 717511 1 | Full Hex Lock Nut,
| 5/16" -18
32 722016 1 Cotter Pin, 3/32" x 5/8"
33 715156 2 Screw |
34 119018 2 Washer
35 717520 2 Lock Jam Nut
36 722006 1 Cotter Pin, 1/8" x 1"
NOTE: 174741 BOLT ASSEMBLY
(INCLUDES REF. NO. 9 AND 10)
Ref. Qty. |
No. Part No. | Rea. Description
37 705016 l Hex Head Capscrew,
3/8" -16 x 1-1/4”
38 719001 1 Plain Washer, 3/8"
39 106716 1 Idler Pulley
40 720002 1 Lockwasher, 3/8"
41 717003 1 Full Hex Nut,
3/8 - 16
42 174207 1 Rod
43 722016 1 Cotter Pin, 3/32" x 5/8"
44 8191045 1 Spring
45 8191022 1 Set Collar
46 713001 1 Sq. Head Set Screw,
1/4" -20 x 3/8”
47 164094 1 Rod Guide Assembly
48 717511 1 Full Hex Lock Nut,
5/16" -18
49 101126 2 Tension Spring
50 705005 1 Hex Head Capscrew,
3/8"-16 x 1”
51 719002 2 Plain Washer
52 717510 2 Full Hex Lock Nut,
3/8” -16
53 705016 1 Hex Head Capscrew,
3/8" -16 x 1-1/4"
54 108199 2 Link
55 153058 1 Pin
56 106788 2 Spring Clip
57 174209 1 Chain Assembly
58 102004 1 Pivot Pin
59 101115 1 Pulley
60 174743 1 Boit Assembly
61 717510 2 Full Hex Lock Nut
62 174211 1 Eyebolt
63 717515 1 Full Hex Lock Nut
64 173948 1 М” Ве!
65 174316 1 Cover
66 106229 1 Wing Nut
67 174187 - } Lever Assembly
DRIVE ASSEMBLY
SEE LAST PAGE FOR
ASSEMBLED VIEW
DRIVE ASSEMBLY
ef. Qty. Ref. | Qty.
No. Part No. | Req. Description No. Part No. | Red. Description
1 174184 1 Mounting Plate Assembly 32 715048 5 Hex Capscrew,
2 173664 2 Spacer 5/16" -18 x 3/4"
3 174150 1 Bearing Housing 33 715073 1 Hex Capscrew,
4 173739 2 Bearings 5/16" -18 x 7/8"
5 715092 2 Hex Head Capscrew, 34 720001 7 Lockwasher, 5/16"
7/16" -14 x 1-1/4" 35 717001 7 Hex Full Nut, 5/16” -16
6 715054 1 Hex Head Capscrew 36 174517 1 Bracket
7 717519 3 Full Hex Lock Nut, 37 715121 1 Hex Capscrew,
7/16" -14 5/16" -18x 1"
8 174119 1 Spacer 38 719006 1 Plain Washer, 1/4”
9 727002 l Grease Fitting 39 118118 1 Oil Seal
10 174193 1 Crankshaft 40 727004 1 Crease Fitting
11 173140 3 Washer 41 173948 1 “V” Belt
12 173557 1 Hub and Pulley 42 173632 1 Spacer Bar
13 161037 2 Washer 43 720001 3 Lockwasher, 5/16"
14 157326 1 Ring 44 715073 3 Hex Head Capscrew,
15 161075 1 Seal 5/16” -18 x 7/8"
16 173570 2 Key 45 ‚715149 1 Hex Head Capscrew
17 173553 1 Sun Gear 46 717519 1 Full Hex Lock Nut
18 173738 2 Bearing 47 174178 1 Shoe Assembly
19 173542 1 Spider Hub 48 156306 2 Pin
20 725003 2 Woodruff Key, No. 9 49 106788 2 Spring Clip
21 173668 1 Washer 50 174238 2 Bracket
22 8051040 1 Retaining Ring 51 121163 1 Pinion Spacer
23 157333 1 Ring, Bolt 52 156089 5 Washer
24 157335 3 Pinion 53 715099 1 Hex Head Screw,
25 157337 3 Needle Bearing 3/8"-16 x 1-1/2”
26 157336 3 Pinion Pin 54 720002 1 Lockwasher, 3/8"
27 717511 3. Full Hex Lock Nut, 55 717003 1 Full Hex Nut,
| 5/16" -18 3/8" -16
28 161054 1 Left Hand Cover 56 8271015 1 Pin
29 161129 3 Gasket 57 106787 1 Spring Clip
30 157382 2 Ring Gear 58 174235 1 Cable Assembly
31 173550 1. Cover
OTE: 173667 HOUSING w/BEARINGS
{INCLUDES REF. NO. 3 AND 4)
173556 PULLEY AND HUB ASSEMBLY
(INCLUDES REF. NO. 12 THRU 18)
SICKLE ASSEMBLY
SEE LAST PAGE FOR
ASSEMBLED VIEW
SICKLE ASSEMBLY
Ref. Qty.
No. Part No. | Req. Description
1 174216 1 Cutter Bar Assembly
(Incl, Ref. Nos. 2 thru 18)
2 174188 1 Bar Cutter
3 174201 1 Blade Assembly
(Incl. Ref. Nos. 4 thru 8)
4 174202 1 Bar
5 174203 3 Knife Section
6 174535 16 Knife Section
7 724701 42 Rivet
8 173559 l Filler Bar
9 174536 19 Guard
10 174541 l Shear Finger Assembly
11 174537 5 Bar Clip
12 174538 1 Bar Clip
13 717519 22 Full Hex Lock Nut,
7/16 -14
14 702019 9 Carriage Bolt,
7/16" -14 x 1-1/2"
15 174539 5 Wear Plate
16 174540 12 Plain Washer
17 702025 9 Carriage Bolt,
7/16" -14 x 1”
18 702028 1 Carriage Bolt
19 715092 1 Hex Head Capscrew,
7/16" -14 x 1-1/4"
20 174183 1 Tube
21 715036 1 Hex Head Capscrew,
3/8" -16 x 2-1/4"
22 705010 3 Hex Head Capscrew,
3/8" -16 x 1-3/4"
23 715160 1 Hex Head Capscrew,
3/8" -16 x 2-3/4"
24 717510 5 Full Hex Lock Nut,
3/8" -16
25 174191 1 Sickle Head
26 720001 5 Lockwasher, 5/16”
27 715088 5 Hex Head Capscrew,
5/16" - 24 x 3/4"
28 715149 1 Hex Head Capscrew
29 173141 4 Washer
30 8161196 1 Pitman Bearing Housing
31 8161198 2 Needle Bearing
Ref. Qty.
No. Part No. | Req. Description
32 173177 2 Spacer
33 720006 2 Lockwasher, 7/16"
34 717022 2 Full Hex Nut, 7/16” - 14
35 173530 1 Clevis Assembly
36 715161 2 Hex Head Capscrew,
3/8” - 16 x 2-1/4"
37 8161056 2 Bearing Pivot Block
38 101025 6 Washer
39 720002 2 Lockwasher, 3/8"
40 717003 2 Full Hex Nut, 3/8” - 16
41, 173529 1 Clevis Assembly
42 174322 1 Pitman Bearing Housing
43 727002 4 Crease Fitting
44 174194 1 Support Assembly
45 719001 2 Plain Washer, 3/8”
46 174206 1 Spacer
47 705009 1 Hex Head Capscrew,
3/8 -16 х 1-1/2"
48 717510 1 Full Hex Lock Nut,
| | | 3/8"-16
49 174181 1 Shoe Assembly
50 105249 2 Pin
51 106787 2 Spring Clip
52 174393 1 Bracket
53 705005 1 Hex Head Capscrew,
3/87 -16 x 1"
54 717510 2 Full Hex Lock Nut,
3/8” - 16
55 174557 1 Divider Board Support
56 108766 1. Shoulder Bolt
57 101078 1 Divider Board
58 101079 1 Divider Rod Assembly
59 702005 5 Carriage Bolt,
3/8” -16 x 1-1/2”
60 719001 5 Plain Washer, 3/8”
61 720002 5 Lockwasher, 3/8”
62 717003 5 Full Hex Nut, 3/8” - 16
63 155058 1 Pin
64 106787 1 Spring Clip
65 705064 1 Hex Head Capscrew
66 715080 2 Hex Head Capscrew
67 174368 1
Wear Plate
“- NOTE: THESE PARTS ARE FOR
RE-ATTACHMENT OF 60”
ROTARY MOWER
720002 3/8"
LOCK WASHER 174243
LIFT BAR
174242 |
TE
2 715099 HEX CAPSCREW
717003 3/8-16
\ 3/816 x 1-1/2" Ig.
Ey
Ze
HEX NUT fe 7
720002 3/8” Za. A 156306
LOCK WASHER > 7 PIN
В ` 8161045
719001 3/8 SPRING CLIP
PLAIN WASHER |
715099 HEX CAPSCREW
3/8"-16 x 1-1/2" Ig.
174243
LIFT BAR
HITCH GROUP
DRIVE GROUP
AND
aX
X al 1 РЫ
.
dr E
ce Za
y
ATCH GROUP
HITCH, DRIVE AND
SICKLE GROUPS