Caterpillar cat 140 g motor grader (prefix 81v) service repair manual (81v00382 01030)

Service Repair Manual
Models
140G Motor Grader

Shutdown SIS
Previous Screen
Product: MOTOR GRADER
Model: 140G MOTOR GRADER 81V
Configuration: 140G MOTOR GRADER 81V00382-01030 (MACHINE) POWERED BY 3306 ENGINE
Disassembly and Assembly
12G, 130G & 140G MOTOR GRADER POWER TRAIN
Media Number -SENR7186-01 Publication Date -01/11/1989 Date Updated -24/02/2006
SENR71860006
Drive Sprockets
SMCS - 4072-11; 4072-12
Remove Drive Sprockets
start by:
a) remove tandem housings
1. Remove nut (1) with tool (A).
1/3140G MOTOR GRADER 81V00382-01030 (MACHINE) POWERED BY 3306 ENG...
2020/2/4https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...

2. Remove sprockets (2) and (3). Weight of one sprocket is 32 lb. (15 kg).
3. Do Steps 1 through 2 for the other drive sprockets.
Install Drive Sprockets
1. Put sprocket (1) in position on the shaft. Install sprocket (1) with the hub of the sprocket away
from the final drives.
2. Put sprocket (2) in position on the shaft. Install sprocket (2) with the hub toward the hub on
sprocket (1).
3. Put the nut that holds the sprockets on the shaft in position on the shaft. Install the axle in the
differential and final drive.
NOTICE
The following procedure must be used to put the correct amount of
preload on the bearings for the final drives:
A. Tighten the nut to a torque of 150 lb. ft. (20.7 mkg) with tool (A).
B. Turn the sprockets to put the bearings in their seats.
C. Hit the hub of the sprocket with a large punch and a hammer.

D. Do Steps A, B, and C until the nut does not turn when it is tightened.
E. Loosen the nut.
F. Tighten the nut to a torque of 100 lb. ft. (13.8 mkg).
G. If the nut is in a locking position, install the cover and the bolts that hold it.
H. If the nut is not in a locking position, tighten the nut to the next nearest locking position. Install
the cover and the bolts.
4. Do Steps 1 through 3 for the other drive sprockets.
end by:
a) install tandem housings
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Tue Feb 4 12:18:32 UTC+0800 2020

Disassemble Final Drives

start by:
a) remove axles
1. Remove the nut that holds the sprockets on the shaft with tooling (A). Install tooling (B) on the
shaft.

2. Lift the machine off the ground. Install tooling (D) under the rear frame as shown. Remove the
bolts that hold covers (1) from the tandem housing. Remove covers (1).
3. Install tooling (C) on the rear wheels. Fasten a hoist to the tandem housing and tooling (C).
Install tooling (E) between tooling (C) and the hoist to help keep the tandem housing in balance.
Disconnect the air line from the tandem housing.
4. Remove nuts (2) and the washers that hold the tandem housing to the final drive housing.
5. Move the tandem housing away from the final drive housing and on to tooling (B).
NOTE: Tooling (B) keeps the sprockets in their correct positions in the tandem housing.
6. Remove tooling (B) from the shaft. Do not remove tooling (B) from the sprockets.
7. Move the tandem housing away from the machine. Weight is 2300 lb. (1043 kg).

8. Remove O-ring seal (3) from the housing. Remove bearing (4) from the shaft.
9. Remove bolts (5) that hold retainer (6) to the housing. Remove retainer (6).
10. Remove the washer that is between the final drive housing and retainer (6). The washer is in
three sections.
11. Install two 5/8"-11 NC forged eyebolts (11) and nuts in the housing as shown. Put a fork lift
truck in position under the housing. Install tooling (F) on the lift truck and the eyebolts.
12. Pull the outer housing (8) from the inner housing with tooling (F).
13. Remove two oscillation bearing rings (9) from the housings. Remove washer (7) from the
inner housing. Washer (7) is in three sections.
14. Put tooling (G) and a floor jack in position under inner housing (13). A rag can be put between
tooling (G) and the housing to prevent damage to the housing.
15. Remove nuts (10) and the washers that hold inner housing (13) to the bevel gear case.
16. Install two 3/4"-10 NC forcing screws (14) in the housing. Remove the inner housing far
enough to instalo tooling (H) on the housing. Fasten a hoist to tooling (H). Put an axle in position
in the final drive housing to help keep the housing in balance.

17. Install a wire around the forcing screws and the planet carrier to keep the planet carrier from
falling. Remove inner housing (13) and the planet carrier. Weight is 360 lb. (163 kg). Remove O-
ring seal (12). Remove the O-ring seal from the inside surface of inner housing (13).
18. Put the final drive housing in position on blocks with the planet carrier up. Remove the wire
and the forcing screws from the housing.
19. Remove pinion (16) from planet carrier (15). Fasten a hoist to planet carrier (15) and remove
it. Weight is 90 lb. (41 kg).
20. Bend the locks away from the bolts that hold shafts (17) to the planet carrier. Remove the
locks and the bolts. Remove retainers (18) from the shafts.
21. Remove shafts (17) from the planet carrier. Remove gears (21) and washers (20) from the
planet carrier. Remove rollers (19) from gears (21).
22. Remove ring (23) from the planet carrier with tooling (I). Remove washer (22) from the planet
carrier.

23. Bend the locks away from bolts (25). Remove bolts (25). Remove plates (26) that hold ring
gear (24) to the housing.
24. Remove ring gear (24). Weight is 38 lb. (17 kg).
25. Remove shaft (27) from the housing. Weight is 40 lb. (18 kg).
26. Remove bearing (28) from shaft (27) with tooling (J).
27. Remove bearing cup (29) from the housing with tooling (K). Remove the lip-type seal from
the housing. Remove the bearing cup from the other end of the housing with a hammer and a
punch.
28. Do Steps 1 through 27 for the other final drive.

Assemble Final Drives
1. Lower the temperature of bearing cup (1). Install bearing cup (1) in the housing.
2. Install the seal in the housing with tooling (J). Install the seal with the lip toward bearing cup
(1). Put clean oil on the seal.

3. Put inner housing (4) in position on blocks as shown. Lower the temperature of the bearing cup
and install it in the housing.
4. Heat bearing (7) in oil to a maximum temperature of 275° F (135° C). Install bearing (7) on
shaft (6). Install the shaft and the bearing in the bearing cup and housing (4).
5. Put ring gear (2) in position on housing (4). Install plates (5) in the groove of the ring gear.
Install the locks and bolts (3) on the plates. Bend the locks against the bolts.
6. Install the washer in the carrier. Install the large retaining ring that holds the washer with tool
(B).
7. Install the rollers in the gears. Install the gears and the washers in planet carrier (8). Install
shafts (9) that hold the gears in the planet carrier. Install the retainers, the bolts and the locks that
hold the retainers. Bend the locks against the bolts.
8. Put the carrier on its other end. Fasten a hoist to the carrier. Put planet carrier (8) in position on
shaft (6) and in ring gear (2). Install pinion (10) in the planet carrier. Install a wire to hold the
planet carrier in position in the housing.
9. Install O-ring seal (11) on the housing. Install tooling (C) on housing (4). Fasten a hoist to
tooling (C). Lift housing (4) and put it in position on tooling (D) and a floor jack. Put axle (12) in
position in the housing to help keep the housing in balance.

10. Move the final drive housing toward the bevel gear case. Remove the wire that holds the
planet carrier in the housing. Remove tooling (C) and the hoist from the housing.
11. Put the final drive housing in position over the studs in the bevel gear case. Install the nuts and
the washers that hold it. Remove tooling (D).
12. Tighten nuts (13) to a torque of 320 ± 15 lb. ft. (44.3 ± 2.1 mkg). Install O-ring seal (14) on
the housing. Put STP OIL TREATMENT or CASITE MOTOR HONEY on the seal.
13. Install tooling (E) on the outer housing. Fasten a hoist to tooling (E). Put some oil on the inside
surfaces of the oscillation bearing rings (15) and on the outside surface of the inner housing.
Install rings (15) in outer housing (17). Install washer (16) on the inner housing. Washer (16) is in
three sections. Put some clean grease on the washer.
14. Put housing (17) in position on the inner housing. Rings (15) and housing (17) can be moved
with a soft hammer if necessary. Remove tooling (E).
15. Install bearing (20) on the shaft. Install washer (18) on the face of the outer housing. Washer
(18) is in three sections. Put some clean grease on the washer. Install retainer (19) on the washer.
Install the bolts and the washers that hold the retainer. Tighten the bolts to a torque of 185 ± 10 lb.
ft. (25.6 ± 1.4 mkg).
16. Install tooling (H) on the rear wheels. Fasten a hoist and chains to the tandem housing. Fasten
chains and tooling (F) to the hoist and the rear wheels. Put the tandem housing and tooling (G) in
position on the final drive housing and the shaft. Install the nuts and the washers that hold the
10/11140G MOTOR GRADER 81V00382-01030 (MACHINE) POWERED BY 3306 EN...

tandem housing to the final drive housing. Tighten the nuts to a torque of 185 ± 10 lb. ft. (25.6 ±
1.4 mkg).
17. Remove tooling (F) and (H) from the tandem housing and the rear wheels. Remove tooling (G)
from the sprockets. Connect air line (21) to its correct location. Install the covers and the gaskets
on the tandem housing. Install the nut that holds the sprockets on the shafts.
NOTICE
The following procedure must be used to put the correct amount of
preload on the bearings for the final drive:
A. Tighten the nut to a torque of 100 lb. ft. (13.8 mkg) with tooling (A).
B. Turn the wheels to put the bearings in their seats.
C. Hit the hub of the sprocket with a large punch and a hammer.
D. Repeat Steps A, B and C until the nut does not turn when it is tightened.
E. Loosen the nut.
F. Tighten the nut to a torque of 50 lb. ft. (6.9 mkg).
G. If the nut is in a locking position, install the axle, the cover and bolts.
H. If the nut is not in a locking position, tighten the nut to the next nearest locking position. Install
the axle, the cover and the bolts.
18. Bend the locks against the bolts. Fill the tandem housing with oil to its correct level.
19. Do Steps 1 through 18 for the other final drive.
Tue Feb 4 12:19:28 UTC+0800 2020
11/11140G MOTOR GRADER 81V00382-01030 (MACHINE) POWERED BY 3306 EN...

Shutdown SIS
Previous Screen
SENR71860008
Transmission Oil Filter Base
SMCS - 3164-11; 3164-12
Remove Transmission Oil Filter Base
1. Remove the plug at the bottom of oil filter (3) and drain the oil from the filter. Replace the plug.
Remove the filter from the filter base.
2. Remove bolts (1) that hold the base to the transmission. Remove transmission oil filter base (2).
Install Transmission Oil Filter Base
1. Put transmission oil filter base (1) in position on the transmission. Install the bolts that hold the
base to the transmission.

2. Install the oil filter on the oil filter base.
Tue Feb 4 12:20:23 UTC+0800 2020

Shutdown SIS
Previous Screen
SENR71860009
Relief Control Valve
SMCS - 3182-11; 3182-12
Remove Relief Control Valve
1. Put identification on oil lines (2) as to their location on the relief control valve. Remove oil lines
(2) from the valve.
2. Remove bolts (1) that hold the valve to the transmission. Remove relief control valve (3).
Install Relief Control Valve
1. Put relief control valve (1) in position on the transmission. Install the bolts that hold the valve to
the transmission.

2. Connect the two oil lines to their correct locations on the relief control valve.
Tue Feb 4 12:21:19 UTC+0800 2020

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Shutdown SIS
Previous Screen
SENR71860010
Transmission Oil Filter Base
SMCS - 3164-15; 3164-16
Disassemble Transmission Oil Filter Base
start by:
a) remove transmission oil filter base
1. Remove large O-ring seal (1) from the inside of the filter base.
2. Remove small O-ring seals (2) and (3) from the filter base.
3. Remove plug (6). Remove the O-ring seal from the plug.
4. Remove valve (5). Remove spring (4).

Assemble Transmission Oil Filter Base
1. Install spring (3) in the oil filter base.
2. Put valve (2) in position in the base and over the spring.
3. Install the O-ring seal on plug (1). Install the plug in the base.
4. Install O-ring seal (4) in the oil filter base.
5. Install the two small O-ring seals in the ports for inlet and outlet oil for the base.
end by:
a) install transmission oil filter base

Tue Feb 4 12:22:15 UTC+0800 2020

Caterpillar cat 140 g motor grader (prefix 81v) service repair manual (81v00382 01030)

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Caterpillar cat 140 g motor grader (prefix 81v) service repair manual (81v00382 01030)