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III-12
MACHINE CONFIGURATION
DRIVE SYSTEM
Removing the Hydraulic Pump
1. Drain out the oil from the hydraulic tank.
“Removing the Hydraulic Tank”
2. Disconnect the drain hoses (1) and HST hoses
(2).
3. Disconnect the pressure switch connectors (3).
4. Disconnect the pilot hoses (4).
5. Disconnect the charge hose (5).
6. Disconnect the discharge hoses (6) and suction
hoses (7) from the gear pumps.
7. Remove the cap screws (8) and take out the hy-
draulic pump.
Cap Screw: 116 N·m
Apply molybdenum disulfide grease to the
spline section.
Installing the Hydraulic Pump
Follow the same procedure as for removal in the
reverse order.
Purging Air from the HST Pump
WARNING
When refitting the HST pump after repair or re-
placement, be sure to purge air before starting
the operation. Failure to do so can cause injury
or death due to unexpected machine move-
ment.
1. Before installing the HST pump on the machine,
fill the servo control chambers with hydraulic
oil.
a. Plug the pilot ports (X1), (X2), (X11) and
(X12) temporarily.
b. Supply hydraulic oil through the servo pres-
sure gauge ports (M4), (M5), (M14) and
(M15) to fill the servo control chambers.
T7C111
7
2
6
4
3
1
2
5
T7C112
8
4
7
5
Summary of Contents for TL150
Page 1: ...TL150 Track Loader BOOK No CT7E901 WORKSHOP MANUAL Serial No 21500004...
Page 4: ...0 4...
Page 5: ...I 1 I GENERAL...
Page 18: ...I 14 GENERAL...
Page 19: ...II 1 II SPECIFICATIONS...
Page 44: ...III 1 III MACHINE CONFIGURATION...
Page 94: ...III 51 MACHINE CONFIGURATION ELECTRICAL SYSTEM ELECTRICAL SYSTEM ELECTRICAL WIRING DIAGRAM...
Page 122: ...III 79...
Page 146: ...MACHINE CONFIGURATION III 103...
Page 147: ...IV 1 IV HYDRAULIC UNITS...
Page 152: ...IV 6 HYDRAULIC UNITS HST PUMP 1 Plug 2 Plug 3 Plug 4 Screw 5 Seal Nut 6 Plug Pump Assembly 4 4...
Page 189: ...IV 43 HYDRAULIC UNITS GEAR PUMP INSPECTION AND ADJUSTMENT IV 36 38 TROUBLESHOOTING IV 39...
Page 230: ...IV 84 HYDRAULIC UNITS PILOT VALVE INSPECTION AND ADJUSTMENT IV 79 TROUBLESHOOTING IV 80...
Page 261: ...IV 115 HYDRAULIC UNITS TRAVEL MOTOR DISASSEMBLY AND ASSEMBLY Special tools...
Page 263: ...IV 117 HYDRAULIC UNITS TRAVEL MOTOR...
Page 282: ...IV 136 HYDRAULIC UNITS TRAVEL MOTOR...
Page 283: ...V 1 V TROUBLESHOOTING...