Specifications; Service Diagnosis - Komatsu D32E-1 Shop Manual

TORQUE CONVERTER

SPECIFICATIONS

Universal Joint Mounting Bolts - D32E-1, D32P-1, D38E-1 or D38P-1 . . . . . . . . . . . . . . . . . . . . . . . 33 NCm (24 lbf ft)
Universal Joint Mounting Bolts - D39E-1 or D39P-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 NCm (42 lbf ft)
Converter Mounting Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 NCm (32 lbf ft)
Housing Cover Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 to 58 NCm (36 to 43 lbf ft)
Flex Plate Mounting Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 to 58 NCm (36 to 43 lbf ft)
Yoke Mounting Bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 to 88 NCm (54 to 65 lbf ft)
Drive Plate Mounting Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 NCm (80 lbf ft)
Bearing Retainer Mounting Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 to 58 NCm (36 to 43 lbf ft)
Impeller to Drive Housing Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 to 58 NCm (36 to 43 lbf ft)
Stall Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 to 1
Type - D32E-1 or D32P-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 mm (10 in) Single Stage Fixed Stator
Type - D38E-1 or D38P-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269 mm (10.6 in) Single Stage Fixed Stator
Type - D39E-1 or D39P-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287 mm (11.3 in) Single Stage Fixed Stator
Fluid Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 82E to 92EC (180E to 200EF) With a Maximum of 121EC (250EF)
Weight:
D32E-1 or D32P-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394.6 kg (179 lbs)
D38E-1 or D38P-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401.2 kg (182 lbs)
D39E-1 or D39P-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445.3 kg (202 lbs)

SERVICE DIAGNOSIS

PROBABLE CAUSE
1. Leaking connections.
2. Leaking converter.
1. Operating too long in low efficiency ranges.
2. Low basic pressure.
3. Low oil level.
4. Converter by-pass valve sticking.
5. Excessive converter oil leakage into flywheel hous-
ing.
1. Low oil level.
2. Low basic pressure.
3. Engine not up to rated performance.
4. Excessive converter oil leakage.
1. Bearing failure allowing turbine or impeller blades to
strike fixed stator.
7B - 4
Loss of Fluid from Torque Converter
Torque Converter Overheating
Loss of Power
Grinding or Scraping Noise Inside Converter Housing
REMEDY
Run engine at part throttle and inspect lines for leaks.
Tighten or replace parts as necessary.
Check all hardware and gasket joints while system is
under pressure. Replace parts as necessary. Check
sleeve and shaft seal ring. Replace as necessary.
Review operating instructions in OPERATION & MAIN-
TENANCE MANUAL
Check for broken lines or loose connections on pressure
side of system. Check for excessive fluid leaking.
Check level in rear main frame.
Remove valve and clean. Inspect bore and spring.
Check ground sleeve and turbine shaft sealing ring wear.
Replace as necessary.
Check level in rear main frame.
Refer to Item 2 under Torque Converter Overheating.
Refer to ENGINE SHOP MANUAL.
Check ground sleeve and turbine shaft sealing ring wear.
Replace.
Replace bearings, turbine or impeller as necessary.
GENERAL