TM 5-3805-290-23-1
TROUBLESHOOTING INTRODUCTION - CONTINUED
0004 00
OPERATIONAL CHECKS (HYDRAULIC LOCKOUT CONTROL)
0004 00
1.
Engage parking brake (TM 5-3805-290-10).
2.
Start engine (TM 5-3805-290-10).
3.
Place switch for hydraulic lockout control in OFF position (TM 5-3805-290-10).
4.
Activate loader controls to verify no implement movement occurs (TM 5-3805-290-10).
0004 00
OPERATIONAL CHECKS (LOWERING OF LOADER LIFT CYLINDERS WITH A DEAD ENGINE)
1.
Start engine (TM 5-3805-290-10).
2.
Raise lift arms until loader bucket is approximately 24 in. (61 cm) off ground (TM 5-3805-290-10).
3.
Shut down engine (TM 5-3805-290-10).
4.
Lower implement with engine stopped (TM 5-3805-290-10).
5.
Verify procedures work properly.
OPERATIONAL CHECKS (QUICK COUPLER)
0004 00
1.
Engage parking brake (TM 5-3805-290-10).
2.
Start engine (TM 5-3805-290-10).
3.
Lower work tool to ground (TM 5-3805-290-10).
4.
Disengage and engage quick coupler to ensure quick coupler cylinders operate (TM 5-3805-290-10).
5.
Ensure quick coupler is engaged before raising work tool from ground (TM 5-3805-290-10).
OPERATIONAL CHECKS (STEERING SYSTEM)
0004 00
N OT E
Operational checks can be used to find leakage in steering system or identify a failed valve or hydraulic
and steering pump.
Oil in the steering system must be at an operating temperature of 115 to 126F (46 to 52C).
1.
Place steering frame lock securely in stowed position (TM 5-3805-290-10).
2.
Release parking brake and place transmission direction and shift lever in NEUTRAL position (TM 5-3805-290-10).
3.
Release service brakes (TM 5-3805-290-10). Turn steering wheel in both directions until steering cylinders extend and
retract completely. Extension and retraction of steering cylinders must be smooth and regular.
4.
Listen for noise from hydraulic and steering pump.
5.
Inspect steering system for leaks and damaged components.