CAT Articulated Truck 725 Specifications Page 19
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120 SEBU8524
Maintenance Section
Differential and Final Drive Oil - Change
i02232197
Differential and Final Drive Oil
- Change
SMCS Code : 3258-044; 4050-044
NOTICE
Care must be taken to ensure that fl uids are contained
during performance of inspection, maintenance, test-
ing, adjusting and repair of the product. Be prepared to
collect the fluid with suitable containers before open-
ing any compartment or disassembling any compo-
nent containing fluids.
Refer to Special Publication, NENG2500, “Caterpillar
Tools and Shop Products Guide” for tools and supplies
suitable to collect and contain fluids on Caterpillar
products.
Dispose of all fluids according to local regulations and
mandates.
1. Operate the machine until the differential oil is
warm. Park the machine on a level surface.
g01125937
Illustration 140
2. Slo
wly move the machine until plug (1) is at the
lowest point on the rear left final drive. Engage the
parking brake and shut off the engine.
3. Wipe the area around plug (1) on the final drive.
Remove plug (1). Rem ove the plug slowly in o rder
to
gradually release any system pressure. Allow
the oil to drain into a suitable container.
4. Cl
ean plug (1) and inspect the O-ring seal for
damage. Lubricate the O-ring seal with gear oil
and install the plug.
Note: The plug is magnetic. Check the plug for
ferrous particles that may indicate wear of the
d
ifferential and final drive components.
5. Start the engine and disengage the parking brake.
6. Repeat Step 2 th
rough Step 4 for the rear right
final drive.
g01125939
Illustration 141
7. Remove drain plug (2) and level plug (3) from the
rear axle. Remove the drain plug slowly in order to
gradually release any system pressure. Allow the
oil to drain into a suitable container.
8. Clean the drain plug and inspect the O-ring seal
for damage. Lubricate the O-ring seal with gear oil
and install the drain plug.
Note: The drain plug is magnetic. Check the plug
for ferrous particles that may indicate wear of the
differential and final drive components.
9. Start the engine and disengage the parking brake.
g01125942
Ill
ustration 142
10. Slowly move the machine until “Oil Level” mark
(4
) on the rear right final drive is horizontal.
Engage the parking brake and shut off the engine.
11
.
Re
move plug (1) from the front right final drive
and add oil to the final drive. Refer to Operation
and Maintenance Manual, “Capacities (Refill)” and
O
peration and Maintenance Manual, “Lubricant
Viscosities”.
- MAINTENANCE INTERVALS 1
- Operation and 2
- Maintenance 2
- Maintenance Interval Schedule 3
- Autom atic Lubrication Grease 5
- Tank - Fill 5
- (If Equipped) 5
- Grease Recommendations 6
- Backup Alarm - Test 7
- Battery - Recycle 7
- Battery or Battery Cable 7
- Inspect/Replace 7
- Body Pivot Bearings 8
- Brake Pads - Check 9
- Brake System Air - Pu rge 10
- Braking System - Test 11
- Illustration 126 12
- Illustration 127 12
- Illustration 128 12
- Circuit Breakers - R eset 13
- Cooling System Coolant (ELC) 13
- Illustration 131 14
- Illustration 132 14
- Illustration 130 14
- Coo ling System Coo lant 15
- Extender (ELC) - Add 15
- - C heck 15
- Illustration 135 16
- Illustration 137 17
- Illustration 138 17
- Cranksh aft Vibration Dam per 18
- - Change 19
- Level - C h eck 20
- Illustration 146 21
- Inspect/Repl 22
- Engine Air Filter Primary 23
- Element-C 23
- Engine Air Filte r Secon dary 24
- Element - Replac e 24
- Engine Cran kcase Breather 24
- Engine Oil L evel - Ch eck 25
- Engine Oil Sampl e - Obtain 25
- Illustration 156 28
- Illustration 157 28
- Illustration 158 28
- Engine Valve L ash - Check 29
- Ether Starting Aid Cylinder 30
- (OEM Attachmen t if Equipped) 30
- Front Frame 31
- Front Suspension Frame 31
- Oscillating Hitch 31
- Rear Frame 32
- Rear Frames 32
- Dump Body 32
- Radiator Mounts 32
- Mounts for the Suspension 32
- Fuel Sy stem 33
- Fuel System Primary Filter 34
- Illustration 170 35
- Illustration 171 35
- Fuel Syst 36
- Fuel Tank Cap and Strainer 36
- Fuel Tank Water and Sediment 37
- Fuses - Re place 38
- Hoist C ylinder Bearing s 39
- Lubricate 39
- Illustration 178 40
- Illustration 179 40
- Illustration 180 40
- Hydrauli 41
- Hydraulic System Oil Level 42
- Hydrau lic System Oil Samp le 43
- Hydrau lic Tank Breat her 43
- Clean/Inspect/Replace 43
- Hydrau lic Tank Strainer 44
- Clean/Insp ec 44
- Oscillating Hi tch - Ad just 44
- Oscillating Hitch - Lubricate 45
- Radiator Core - Clea n 46
- Refrig erant Dryer - Replace 47
- Rollover Protective Structure 47
- (ROPS) - Inspect 47
- Seat Belt - Insp ect 49
- Seat Belt - Replace 49
- Secondary Steering - Test 49
- Steering Cylinder Bearings 50
- Suspension System - Check 51
- Suspension and Su spen sion 51
- Cylinder Bear 51
- Tire Inflation - Ch eck 52
- Torque Converter and 52
- Transmission O il - Change 52
- Illustration 213 53
- Illustration 214 53
- Illustration 215 53
- Ecology Dr ain 54
- Transmission 55
- Oil Filter 55
- Oil Level 56
- Torque Con 57
- Transmission O il S ample 57
- Illustration 224 58
- Illustration 225 58
- Tran sfer G ear Oil Filter 59
- Illustration 230 60
- Illustration 229 60
- Transfer Gear Oil Samp le 61
- Illustration 232 62
- Illustration 233 62
- Illustration 234 62
- Windows - Clean 63
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