TM 5-3805-262-20
3-18. SERVICE BRAKE SYSTEM TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. POOR BRAKE ACTION (Cont).
Step 1.
Check brake system hydraulic reservoirs fluid level (page 7-23).
a . I f f l u i d l e v e l i s l o w, add fluid (page 7-23).
b. If fluid level is okay, go to step 2 below.
Step 2.
Check brake hoses, lines, and fittings for brake fluid leaks (page
7 - 3 2 ) .
a . I f c o n n e c t i o n s a r e l e a k i n g f l u i d, t i g h t e n ; i f b r a k e l i n e s a re
leaking fluid, replace them (page 7-34 or 7-42) .
b. If brake lines and connections are okay, go to step 3 below.
Step 3.
Place blocks at each wheel to prevent loader from moving.
Engage transport/service link (page 9-8).
Ensure that parking brake is applied.
Before raising vehicle from ground, be sure that transport/service link
is engaged. Failure to do so may cause loader to turn and slip off jacks
or jack stands causing serious in-jury or death.
Raise one axle and wheel off ground.
Remove tire and wheel from axle end (page 8-4).
Check brake calipers for brake fluid leakage.
Repeat for other wheel and axle.
a. If brake caliper is leaking, replace brake caliper (page 7-28).
b. If brake caliper is okay, go to step 4 below.
Step 4.
Check brake pads for wear (page 7-18), uneven glaze, and brake fluid
or lubricant contamination.
a. Replace brake pads if worn, glazed, or contaminated (page 7-19).
b. If brake pads are okay, check each disk for scored or grooved
condition (page 7-18). Notify next higher maintenance level to
replace disk if these conditions are seen.
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