T M 9 - 2 3 5 0 - 2 5 6 - 2 0
CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTlONS
2 - 1 6 . 1 M E C H A N I C A L T R O U B L E S H O O T I N G - C o n t i n u e d
M E C H A N I C A L T R A N S M I S S I O N - C o n t i n u e d
Have assistant start engine. Observe power takeoff
coupling and drive shaft. If the power takeoff
coupling and drive shaft are not turning, turn off
engine and remove powerplant (see paragraph 3-l).
Install holding bar and pulley (Appendix B, item 21)
and tighten power takeoff retaining nut. Torque nut
to 240-250) lb-ft (325-339 Nm). Reinstall powerplant
(see paragraph 3-1).
Remove rear center subfloor plate (see paragraph 9-
17). Remove pipe plug in mechanical transmission
(see paragraph 2-15) and perform STE-ICE-R test 50
(pressure gage optional) (Appendix B, items 153 and
160). Lubricating oil pressure should be 10-19 psi
(69-131 kPa). If lubricating oil pressure is not 10-19
Psi (69-131 kPa), notify Direct Support Maintenance.
D Disconnect hydraulic line (see paragraph 12-2).
Install tee and perform STE/ICE-R test 50 (pressure
gage optional) (Appendix B, items 153 and 160).
Connect hydraulic line. Operate engine at 1600 rpm.
Mechanical transmission clutch operating pressure
should be 140-225 psi (965-1551 kPa). If clutch
pressure is not 140-225 psi (965-1551 kPa), notify
Direct Support Maintenance.
2 - 1 7 H Y D R A U L I C T R O U B L E S H O O T I N G
M A I N W I N C H
Main winch fails to operate.
Do steps A through J.
Main winch creeps with control in neutral or winch
brake falls to hold load.
Do steps K and L.
Maim winch operates with difficulty.
Main winch level winder fails to traverse.
Do steps B through J.
Do steps M and N.
The main winch troubleshooting procedures
are performed using the main hydraulic
system as a fluid power source.
winch operates using the main hydraulic but
not the auxiliary hydraulic, troubleshoot
auxiliary hydraulic system. If main winch
operate; using the aixiliary hydraulic but
not the main hydraulic, troubleshoot main
2-40.16 Change 1