TM 5-2420-231-23-1
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Table 1. All Hydraulic Functions Move Slowly or Have No Power.
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MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 1. Inspect Hydraulic Fluid
All Hydraulic Functions
Tank for Fluid Level.
Move Slowly or Have No
Power
Check hydraulic fluid level on sight
Hydraulic Fluid at or Below ADD
Mark - Add hydraulic fluid to the FULL
gauge (Figure 1). Fluid level should be
mark (WP 0086).
between the ADD and FULL marks
Proceed to Test Step 8.
(TM 5-2420-231-10).
Hydraulic Fluid Above ADD Mark -
Proceed to Test Step 2.
Figure 1. Hydraulic Fluid Level Check.
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Test Step 2. Test Hydraulic Fluid for
NOTE
Hydraulic oil filter warning lamp will illuminate for approximately 3
seconds and then go out.
1. Check for discoloration of
Hydraulic Oil Is Discolored - Perform
hydraulic oil in sight glass.
Hydraulic Reservoir Drain and Fill (WP
Change hydraulic oil filter (WP 0259).
Proceed to step 2.
2. Monitor and record the hydraulic
Hydraulic Oil Filter Warning Lamp
oil filter warning lamp (Figure 2,
Remains Illuminated - Diagnose
Item 1) on with the ignition switch
hydraulic oil filter warning lamp (WP
in the on position (TM 5-2420-231-
10).
Hydraulic Oil Filter Warning Lamp
Does Not Illuminate - Proceed to
step 3.
