3-15
2. TROUBLESHOOTING
TRANSMISSION
Check list during operation list
(1)
No
Condition
Possible causes
Correction
1
2
3
Transmission does not
operate in any speed or
does not engage(slips) in
all speeds
Transmission does not
shift
Transmission gets hot.
Low oil pressure or no oil
pressure caused by :
Low oil, no oil, or thick oil.
Inching control valve linkage
loose, broken or adjustment is
not correct.
Inching valve spool stuck(held)
open.
Failure of the oil pump or a
defect in the oil pump.
Converter drive tangs worn off
or not engaged into pump
or broken bolt.
Main regulator valve stuck
open.
Restriction in the oil flow circuit
such as dirty oil screen.
Low oil pressure.
Main regulator valve will not
move(stuck).
Solenoids or related electric
components are out of order.
Restriction in cooling circuit.
Oil level too high or too low.
Low pump pressure -worn or
damaged pump.
Converter one way clutch worn
and slipping.
Air mixed in the oil. Air leaks on
the intake side of the pump.
Low oil flow through converter.
Wrong application for vehicle
(loads are too heavy for the lift
truck).
Too much inching operation
(slipping the clutch plates and
discs).
Too much stalling of torque
converter.
Cooler bypass valve stuck(held)
open, full oil flow does not go
through oil cooler.
Check to oil level.
Check to mix another oil.
Check to tightening bolt or
changing a control valve ass'y.
Changing a spool of the control
valve ass'y or check it.
Changing the oil pump or have
to check.
Check to tightening torque of
bolt from Torque Converter
Gear.
Check to Control Valve Ass'y.
Check to suction filter due to a
clogged from a mixed foreign
materal.
Check to oil level.
Check Control Valve Ass'y.
Check to Solenoids Valve or
related electric components.
Check to Restriction in cooling
circuit of transmission.
Check to oil level or
replacement.
Check to transmission inside
cover.
A plugged(restriction) oil flow
passage.
Check to reliable work place
under circumstance.
Check to Control Valve Ass'y.
Check to Torque Converter
Ass'y or replacement.
(1)
(1)
(2)
(3)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
a.
b.
c.
d.
e.
f.
g.
(1)
(1)
(2)
(3)
(1)
(2)
(5)
(6)
(7)
(8)
(9)
a.
b.
c.
d.
e.
f.
g.
(10)
1)
Содержание 60L-7A
Страница 11: ...SECTION 1 GENERAL Group 1 Safety hints 1 1 Group 2 Specifications 1 5 Group 3 Periodic replacement 1 13 ...
Страница 25: ...SECTION 2 REMOVAL INSTALLATION OF UNIT Group 1 Structure 2 1 Group 2 Removal and installation of unit 2 2 ...
Страница 32: ...2 7 Mast Refer to section on mast Page 2 2 1 2 POWER TRAIN ASSEMBLY REMOVAL 1 D503RE04 ...
Страница 69: ...3 28 50DFTM13 Remove bearing 67 and gear 68 30 68 67 ...
Страница 71: ...3 30 Remove oil seal 72 from the transmission case 34 50DFTM17 72 ...
Страница 98: ...3 57 Assemble wheel hub and tighten plug 14 Tightening torque 35 60kgf m 253 2 434 0lbf ft 12 50D7EDA61 ...
Страница 147: ...5 31 2 PRIORITY VALVE STRUCTURE 50DS7ESE08 1 Body 2 Spool 3 Spring plug 4 End plug 5 Spring 6 O ring 7 Orifice 1 ...
Страница 188: ...7 3 10MM RING ELECTRIC CIRCUIT FOR LPG FUE KIT 35L7AEL07 ...
Страница 189: ...7 4 MEMORANDUM ...