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DRIVE TRAIN
SECTION 7
Page 17
DRESSTA
TD-25M EXTRA
SERVICE DIAGNOSIS
8. TROUBLE SHOOTING
COMPLAINT
PROBABLE CAUSE
REMEDY
Main Low Pressure and Clutch Low Oil Pressure Warning Light Glows Red
(Drive Train Control Lever in Neutral, Engine Run, Oil Worm)
1. Low main pressure
Refer to DIAGNOSTIC CHART in Par. 10, below.
2. Pressure switch malfunction
Check and replace switch.
3. Switching valve malfunction
Check valve. Repair or replace.
Clutch Low Oil Pressure Warning Light Glows Red
(Drive Train Control Lever in Forward or Reverse, Engine Run, Oil Worm)
1. Low pressure at gear
Refer to DIAGNOSTIC CHART in Par. 10, below.
No Gear/Direction Engagement
1. Low main and/or gear pressure
Refer to “Main Low Pressure and/or Clutch Low
Oil Pressure Warning Light Glows Red” above
High Torque Converter Oil Temperature (Gauge on Instrument Panel)
1. Low main frame oil level
Check according to OPERATOR’S MANUAL.
2. Temperature gauge or sensor malfunction
Replace gauge or sensor.
3. Operating too long in low efficiency ranges
Review operating instructions in OPERATOR’S
MANUAL.
4. Clogged oil cooler
Clean according to OPERATOR’S MANUAL.
5. Clogged drive train suction filter
Remove and clean.
6. Leakage on suction line
Check suction line for tightness
7.
Transmission
problem
Check transmission temperature and clutches
oil pressure. Refer to DIAGNOSTIC CHART in
Par. 10, below.
8. Torque converter oil leakage excessive
Refer to SECTION 7B, TORQUE CONVERTER.
9. Clogged or restricted torque converter oil
line (T.C. oil pressure O.K.)
Clean and check for correct routing.
10. Steering drive or brake clutches damaged
Refer to DIAGNOSTIC CHART in Par. 10, below.
Loss of Power under Load
1. Low oil level
Check oil level in rear frame and fill as necessary.
2. Engine not up to rated performance
Perform stall speed test. Refer to Par. 11.
3.
Low
transmission
clutches
oil
pressures Check oil pressures. Refer to Par. 10,
TRANSMISSION AND TORQUE CONVERTER
OIL PRESSURE TEST.
4. Transmission oil level too high
Check operation and condition of scavenge circuit.
5. Slipping clutch packs in transmission
and/or steering drive
Refer to Par. 12, DRIVE TRAIN CLUTCH TEST.
6. Excessive torque converter oil leakage
Refer to SECTION 7B, TORQUE CONVERTER.
Summary of Contents for TD-25M EXTRA
Page 1: ...SMTD25MEX07 1E SERVICE MANUAL TD 25M EXTRA SERIAL NUMBERS 75001 AND UP DRESSTA ...
Page 2: ......
Page 4: ......
Page 5: ...SECTION 1 INTRODUCTION ...
Page 6: ......
Page 8: ......
Page 25: ...SECTION 5 STEERING ...
Page 26: ......
Page 27: ...STEERING SECTION 5 DRESSTA TD 25M EXTRA CONTENTS GENERAL 1 DESCRIPTION 1 ...
Page 28: ......
Page 30: ......
Page 31: ...SECTION 6 COOLING SYSTEM ...
Page 32: ......
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Page 49: ...SECTION 7 DRIVE TRAIN ...
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Page 83: ...SECTION 7B HYDRAULIC TORQUE CONVERTER ...
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Page 115: ...SECTION 7C TRANSMISSION ...
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Page 209: ...SECTION 7E STEERING DRIVE ...
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Page 251: ...SECTION 7F FINAL DRIVE ...
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Page 273: ...SECTION 8 ELECTRICAL ...
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Page 283: ...ELECTRICAL SECTION 8 Page 7 DRESSTA TD 25M EXTRA Fig 8 1 Wiring Diagram earlier version ...
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Page 286: ...SECTION 8 Page 10 ELECTRICAL TD 25M EXTRA DRESSTA Fig 8 1A Wiring Diagram later version ...
Page 331: ...SECTION 9 FRAME ...
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Page 336: ...SECTION 9 FRAME Page 2 TD 25M EXTRA DRESSTA GENERAL Fig 9 2 View of Frame ...
Page 339: ...SECTION 10 HYDRAULICS ...
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Page 363: ...SECTION 10A PUMPS ...
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Page 387: ...SECTION 10B VALVES ...
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Page 413: ...SECTION 10C CYLINDERS ...
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Page 449: ...SECTION 10E RESERVOIRS AND FILTERS ...
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Page 459: ...SECTION 12 POWER ...
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Page 479: ...SECTION 13 SUPERSTRUCTURE ...
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Page 491: ...SECTION 14 SUSPENSION ...
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Page 543: ...SECTION 15 TRACK OR WHEELS ...
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Page 565: ...SECTION 17 MOUNTED EQUIPMENT ...
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