Service Manual
440 SerieS Digger MoDelS
440 47 4 example Part number
4 f 102 c 7
Model Ratio Shaft Bail Boss
ThiS Service Manual iS effecTive:
S/n: 110000 To currenT
DaTe: 3-2013 To currenT
verSion: SMD44047-44f102c7
Motor
Supplier
Motor
Number
Cover Input
noTe: Individual customer specifications (spindle mounting, sprocket pilot, brake assembly, etc.) may vary from exploded drawing and standard part numbers shown. If applicable, refer to customer drawing for details.
exploded view Drawing
44047-44f102c7
Eskridge
EFFECTIVE FROM: 02/01/2013 TO: PRESENT
25B
25H
35F
GROUP
5
ITEM
-
1
2
3
4
5A
5B
5C
5D
5E
5F
5M
5N
6
1
1
3
9
QTY
1
1
1
PARTS LIST FOR 44047-44F102C7
PART NUMBER
42-004-3022
42-004-4102
42-004-2012
BASE
DESCRIPTION
D440 SHAFT - 4" SQUARE
COVER-440 (SAE 'C')
1
(1)
1
3
3
120
6
42-004-1614
42-005-0141
42-004-1392
42-004-1242
42-004-1332
01-106-0040
42-004-1362
01-153-0220
42-004-1352
01-160-0680
42-004-1292
INPUT GEAR
CARRIER ASSEMBLY - SECONDARY
CARRIER - SEC
PLANET GEAR - SEC (440/6.19:1)
PLANET SHAFT - SEC (440)
PLANET ROLLER
WASHER - PRI & SEC PLANET 440
ROLL PIN
SPACER - LOOSE ROLLER 440
RETAINING RING (SMALLEY VS-412)
SUN GEAR
7
7A
7B
7C
7D
7E
7F
7M
7H
-
(1)
1
3
6
3
3
60
6
1
-
42-005-0121
42-004-1282
42-004-1272
42-004-1342
01-106-0040
42-004-1362
01-153-0220
42-004-1352
01-160-0690
-
CARRIER ASSEMBLY - PRIMARY
CARRIER - PRI, 7.59:1 440
PLANET GEAR - PRI (440/7.59:1)
PLANET SHAFT - PRI (440)
PLANET ROLLER
THRUST WASHER
ROLL PIN
SPACER - LOOSE ROLLER 440
RETAINING RING, SUN (SMALLEY VS-337)
12
14
12A
12B
-
1
1
42-004-1032
42-004-1042
-
RING GEARS
RING GEAR - SEC (440)
RING GEAR - PRI (440)
THRUST WASHERS & BEARINGS
THRUST WASHER
16
20
14G
14L
16A
16B
17
-
-
20A
20B
20C
20D
-
25A
25B
25G
25H
-
35A
35B
35C
35D
35E
2
1
(1)
1
3
-
1
1
1
1
-
1
4
20
4
20
-
1
2
2
*
1
01-112-0400
01-112-0410
42-016-2011
01-405-0770
01-402-0840
01-402-0010
-
THRUST BEARING
SEAL KIT
OUTPUT SHAFT SEAL
O-RING (PARKER #280)
O-RING
OUTPUT SHAFT BEARINGS
BEARING CONE
25
30
35
30A
30B
30C
-
3
1
-
2
01-102-0290
01-103-0290
01-102-0280
01-103-0280
-
01-150-0090
01-150-1950
01-166-0030
01-166-0040
-
01-207-0100
01-207-0020
01-208-0030
-
42-004-1202
42-004-1222
42-004-1212
01-201-0776
01-201-0775
BEARING CUP
BEARING CONE
BEARING CUP
HARDWARE
HHCS 1/2-13 X 1.5
HHCS 5/8-11 X 9.5
1/2" LOCKWASHER
LOCKWASHER - 5/8 ZINC PLATED
PLUGS AND FITTINGS
PIPE PLUG 3/4 NPT MAGNETIC
PIPE PLUG (1/4 NPT- HOLLOW HEX)
HOLLOW HEX PLUG (05HP-12)
MISCELLANEOUS
SHIM - OUTPUT SHAFT (440)
SPLIT RING (440)
LOCK RING (440)
ADAPTER: #16JIC X #12SF 90º
SPLIT FLANGE KIT
35F
50
1
1
42-005-0171
01-304-1020
BAIL ASSEMBLY
MOTOR
*NUMBER OF SHIMS DEPENDANT UPON DESIRED BEARING PRELOAD.
X44047-44F102C7aa 02-12-13 ECN- HWP
7C
7E
7M
7D
7B
7M
7E
35E
35D
30C
14G
14L
14G
12A
16B
35C
35B
35A
20C
30A
30B
30A
16A
7H
7F
5A 5N
7A
5F
25A
25G
50
30C
17
3
4
16B
12B
16B
6
5D
5M
20D
5E
1
20B
5C
5E
5M
5D
5M
5B
20A
2
Model D440 service manual, SMD44047-44f102c7 Page 2 eskridge, inc. olathe, KS. 913-782-1238 www.eskridgeinc.com
lubricaTion & MainTenance
Using the chart below, determine an appropriate lubricant viscosity. Use only EP (extreme pressure) or API GL-5 designated lubricants.
Change the lubricant after the first 50 hours of operation and at 500 hour intervals thereafter. The auger drive should be partially disassembled to inspect gears and bearings at 1000 hour intervals.
recommended ambient and operating temperatures for conventional and synthetic gear lubricants
-50 -25 0 25 50 75 100 125 150 175 200 225 250 F
80W90 conventional
75W90 conventional
85W140 conventional
Min ambient/operating temp Max ambient temp Max operating temp
75W90 synthetic
80W140 synthetic
-45 -32 -18 -4 10 24 38 52 66 79 93 107 121 C note: ambient temperature is the air temperature measured in the immediate vicinity of the gearbox. a gearbox exposed to the direct rays of the sun or other radiant heat sources will operate at higher temperatures and therefore must be given special consideration. The max operating temp must not be exceeded under any circumstances, regardless of ambient temperature.
If your unit was specified “shaft up” or with a “-Z” option, a grease zerk was provided in the base housing. For shaft-up operation, the output bearing will not run in oil and must be grease lubricated. Use a lithium based or general purpose bearing grease sparingly every
50 operating hours or at regular maintenance intervals. Over-greasing the output bearing should be avoided as it tends to fill the housing with grease and thicken the oil operating Position
Horizontal Shaft
Vertical Shaft (Pinion Down)
eSKriDge MoDel D440 oil caPaciTieS
oil level
Single stage
-
oil capacity
Double stage
-
2.75 Gal / 10.4 L
Triple stage
-
-
To horizontal centerline of auger drive
To midway on upper/ primary gear set
!
Warning: While working on this equipment, use safe lifting procedures, wear adequate clothing and wear hearing, eye and respiratory protection.
eSKriDge ParT nuMber inTerPreTaTion
note: all non custom eskridge geardrives are issued a descriptive part number which includes information regarding the Model, means of shaft retention, base style, shaft style, input mounting, input shaft size, overall ratio and various available options. for a detailed breakdown of this information, please refer to eskridge product specification sheets found at: http://www.eskridgeinc.com/diggers/diggerprodspecs.html
Model D440 service manual, SMD44047-44f102c7 Page 3 eskridge, inc. olathe, KS. 913-782-1238 www.eskridgeinc.com
unit Disassembly Procedure
1) Scribe a diagonal line across the outside of the unit from the bail (35f) to the base (1) before disassembly to aid in the proper positioning of pieces during reassembly.
2) Remove magnetic drain plugs (30a) and drain oil from unit.
The oil will drain faster and more completely if warm.
3) Remove the twenty hex-head capscrews (25b) and lockwashers (25h).
4) Separate bail (35f) from cover (3) and remove from digger assembly.
5) Remove hex-head capscrews (25a) and lockwashers (25g), and remove motor (50) from cover (3).
6) Remove cover (3), thrust bearing (14g & 14l), and input gear
(4). Inspect o-ring (16b); discard if damaged or deformed.
7) Using a screwdriver, seal pick or similar tool remove the retaining ring (7h), which retains the primary carrier assembly
(7) to the secondary sun gear (6). The retaining ring can be left in the carrier. Lift primary carrier assembly out of the unit.
8) Remove secondary sun gear (6) and primary ring gear (12b) and inspect o-ring (16b); discard if damaged.
9) Using a screwdriver, seal pick or similar tool remove the retaining ring (5n), which retains the secondary carrier assembly (5) to the output shaft (2). The retaining ring can be left in the carrier. Lift secondary carrier assembly out of the unit.
10) Remove secondary ring gear (12a). Inspect o-ring (16b); discard if damaged or deformed.
11) The unit is now separated into subassemblies. The area(s) requiring repair should be identified by thorough inspection of the individual components after they have been cleaned and dried.
Primary carrier Subassembly
7C
7E
7M
7D
7B
7M
(items 7a, 7b, 7c, 7D, 7e, 7f, 7h & 7M)
7H
7F
7A
7E
Disassembly
1) Rotate planet gears (7b) to check for abnormal noise or roughness in rollers (7D) or planet shafts (7c). If further inspection or replacement is required, proceed as follows.
2) Drive roll pins (7f) completely into the planet shafts (7c).
3) Slide planet shafts (7c) out of carrier (7a).
4) Remove planet gears (7b), thrust washers (7e), spacers
(7M), and rollers (7D) from the carrier (7a).
5) Inspect the planet gear (7b) bearing bores, planet shafts (7c) and rollers (7D). Check for spalling, bruising or other damage.
Replace components as necessary; rollers should be replaced only as a set of 20.
6) Check planet shafts (7c) for any abnormal wear, especially ones where rollers (7D) needed to be replaced.
If any abnormal wear is found, replace planet shafts.
7) Use 3/16 inch pin punch to remove roll pins (7f) from planet shafts (7c).
noTe: if either the rollers or the planet shafts (pins) are damaged, both components should be replaced.
reassembly
1) To install rollers in planet gear bore: a) Set thrust washer (7e) on work table. Insert planet shaft
(7c) in washer. Slide spacer (7M) over shaft.
b) Place planet gear (7b) centered over planet shaft
(7c).
c) Install 20 rollers (7D) into planet gear (7b) bore. Slide spacer (7M) over planet shaft and rest on top of rollers.
Slide thrust washer (7e) onto planet shaft and rest on top of planet gear.
d) Slide this assembly off the work table, holding the lower thrust washer (7e) and planet gear (7b).
e) Carefully remove planet shaft (7c) from this assembly and slide the gear (7b) with rollers (7D), thrust washers
Model D440 service manual, SMD44047-44f102c7 Page 4 eskridge, inc. olathe, KS. 913-782-1238 www.eskridgeinc.com
(7e) and spacers (7M) into place in the carrier.
2) Carefully install planet shafts (7c) with chamfered end of
3/16 inch hole toward outside diameter of the carrier (7a).
This will aid in alignment of holes while inserting roll pins
(7f). Rotating planet shaft back and forth while sliding it into carrier will help align rollers (7D).
3) Drive a roll pin (7f) through the carrier (7a) hole and into the planet shaft (7c) to retain the parts. Repeat for other planet gears (7b). Place retaining ring (7h) in center of carrier before installing last planet gear.
Secondary carrier Subassembly
(items 5a, 5b, 5c, 5D, 5e, 5f, 5M, 5n) b) Place planet gear (5b) centered over planet shaft
(5c).
c) Install 20 rollers (5D) into planet gear (5b) bore. Slide spacer (5M) over planet shaft and rest on top of first row of rollers.
d) Install another 20 rollers (5D) into planet gear (5b) bore.
Slide another spacer (5M) over planet shaft (5c) and rest on top of second row of rollers. Slide thrust washer (5e) onto planet shaft and rest on top of planet gear.
5A 5N
5C
5E
5M
5D
e) Slide this assembly off the table, holding the lower thrust washer (5e) and planet gear (5b).
f) Carefully remove planet shaft (5c) from this assembly and slide the gear (5b) with rollers (5D), thrust washers (5e) and spacers (5M) into place in the carrier.
2) Carefully install planet shafts (5c) with chamfered end of
3/16 inch hole toward outside diameter of the carrier (5a).
This will aid in alignment of holes while inserting roll pins
(5f). Rotating planet shaft back and forth while sliding it into carrier will help align rollers (5D).
5F
5M
5B
5D
3) Drive a roll pin (5f) through the carrier (5a) hole and into the planet shaft (5c) to retain the parts. Repeat for other planet gears (5b). Place retaining ring (5n) in center of carrier before installing last planet gear.
base Subassembly
(items 1, 2, 16a, 20a, 20b, 20c, 20D, 30a, 30b, 35a, 35b, 35c)
5M
5E
Disassembly
1) Rotate planet gears (5b) to check for abnormal noise or roughness in rollers (5D) or planet shafts (5c). If further inspection or replacement is required, proceed as follows.
35C
35B
35A
20C
2) Drive roll pins (5f) completely into the planet shafts (5c).
30A
3) Slide planet shafts (5c) out of carrier (5a).
4) Remove planet gears (5b), thrust washers (5e), spacers
(5M), and rollers (5D) from the carrier (5a).
5) Inspect the planet gear (5b) bearing bores, planet shafts (5c) and rollers (5D). Check for spalling, bruising or other damage.
Replace components as necessary; rollers should be replaced only as a set of 40.
30B
30A
16A
20D
1
20B
20A
6) Check planet shafts (5c) for any abnormal wear, especially ones where rollers (5D) needed to be replaced.
If any abnormal wear is found, replace planet shafts.
2
7) Use 3/16 inch pin punch to remove roll pins (5f) from planet shafts (5c).
Disassembly noTe: if either the rollers or the planet shafts (pins) are damaged, both components should be replaced.
reassembly
1) Remove the lock ring (35c) using a heel bar or puller; if using a heel bar, be sure not to pry against the cage of the inner output shaft bearing (20c). Remove the split ring segments
(35b) and shims (35a).
1) To install rollers in planet gear bore: a) Set thrust washer (5e) on work table. Insert planet shaft (5c) in washer. Slide spacer (5M) over shaft.
caution: Since the output shaft is no longer retained, care should be taken to avoid personal injury. care should also be taken not to damage it when it is pressed through base.
Model D440 service manual, SMD44047-44f102c7 Page 5 eskridge, inc. olathe, KS. 913-782-1238 www.eskridgeinc.com
2) Base (1) should be set pinion side down, as shown, on a plate or table. Press output shaft (2) through the bottom of base by applying a load to top end (internal end) of shaft until it passes through inner shaft bearing cone (20c). note: removing the shaft from the base assembly damages the shaft seal and the seal will need to be replaced.
3)
4)
1) Clean all foreign material from magnetic oil plugs (30a) lo-
2)
9)
A gear puller may be used to remove the outer bearing cone
(20a) from the shaft (2). If reusing old bearing cone, do not pull on or damage roller cage. Remove the shaft seal from the shaft for replacement.
Inspect inner and outer bearing cups cated in the base (1).
Place base
Lubricate inner lip of new shaft seal shaft (2) and over the shaft seal diameter then press the seal into the base (1) until flush.
(16a)
(20b & 20D). If cups are damaged, drive them out using a brass drift and utilizing the bearing knock-out notches in the base ble.
reassembly
(1).
(1) (output side up, opposite shown) on the ta-
3) Apply a layer of lithium or general purpose bearing grease to the roller contact surface of outer bearing cup (20b).
4) Press outer bearing cone (20a) (large end down as shown) onto the output shaft (2) until it seats against the shoulder. note: Press bearing cone onto output shaft by pressing on inner race only. Do noT press on roller cage, as it may damage bearing.
5) Place the shaft (2) with the bearing cone (20a) into the base
(1).
6) Flip this assembly, resting the base (1) on the end of the output shaft (2).
7) Apply a layer of lithium or general purpose bearing grease to the roller contact surface of the inner cup (20D). Press the inner bearing cone (20c) (large end up as shown) onto the shaft (2) until it is seated against inner bearing cup (20D).
8) Without the shaft seal (16a) installed, the preload may result in a rolling torque that varies between 50 to 300 in-lb. The bearing preload should be tailored to your application; a lowspeed application may require a high pre-load, high-speed applications usually benefit from low pre-load. Adding shims
(35a) will increase the pre-load on the bearing set. Determine your pre-load requirement and install shims to obtain this pre-load. Install the Load-N-Lock™ split ring segments
(35b) over the shims (35a) and into the groove in the shaft
(2). Install the lock ring (35c) over the split ring segments
(35b).
(16a) and slide it onto the all subassembly service or repairs should be complete at this time. continue to unit assembly to complete unit buildup.
unit assembly
1) When all subassemblies are complete, the unit is ready to be assembled.
2) Install the secondary carrier assembly (5) onto the output shaft (2); align the splines of the carrier (5a) with the splines of the output shaft and slide the carrier onto the output shaft.
3) Install retaining ring (5n) into the groove of the output shaft
(2), using a spiraling motion.
4) Lubricate o-ring (16b) and install on the pilot of the secondary ring gear (12a). caution: hold ring gear by outside or use lifting device to prevent injury.
5) Install secondary sun gear (6) into secondary carrier assembly (5).
6) Align gear teeth of secondary ring gear (12a) with the gear teeth of the secondary planet gears (5b) and place on base (1). Align mounting holes of ring gear with holes in base. Use the scribed line made during disassembly for reference.
7)
8)
9)
Install the primary carrier assembly gear
Install retaining ring (7h) into secondary sun gear groove using a spiraling motion.
(7) onto secondary sun
(6); align the splines of the carrier (7a) with the splines of the secondary sun gear and slide the carrier onto the sun gear.
Lubricate o-ring ring gear (12b).
(16b) and install on the pilot of the primary
10) Align gear teeth of primary ring gear (12b) with those of the primary planet gears (7b) and place on secondary ring gear (12a). Align mounting holes of ring gear with holes in base (1). Use the scribed line made during disassembly for reference.
11) Install the input gear (4) into primary carrier assembly (7).
Install thrust bearing (14g & 14l) on top of input gear.
12) Lubricate o-ring (16b) and install on the pilot of the cover
(3).
13) Noting the scribed line made during disassembly, install the cover (3). Temporarily install two hex-head capscrews (25b) to hold assembly together.
14) Ensure the unit spins freely by using a splined shaft to drive the input gear (4).
15) Install motor (50) onto cover (3) with hex-head capscrews
(25a) and lockwashers (25g). Torque the capscrews to 110 ft-lbs dry, or 80 ft-lbs if fasteners are lubricated.
16) Remove two temporary capscrews installed in step 13. Place bail (35f) onto assembly, aligning holes in bail and cover using scribed line made during disassembly as a reference. Install and torque the twenty 5/8-11 hex-head capscrews (25b) with lockwashers (25h). Torque the capscrews to 220 ft-lbs dry, or 170 ft-lbs if fasteners are lubricated.
17) Fill the unit to the proper level, as specified, with GL5 EP
80/90 gear oil after it is sealed with a brake and/or motor.
The digger is now ready to use.
Model D440 service manual, SMD44047-44f102c7 Page 6 eskridge, inc. olathe, KS. 913-782-1238 www.eskridgeinc.com
