TM 5-3805-262-20
3-18. SERVICE BRAKE SYSTEM TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. SERVICE BRAKES DO NOT STOP LOADER (AIR SYSTEM OPERATING OKAY) (Cont).
S t e p 1 . ( C o n t ) .
Tell assistant to press brake treadle and valve.
Pressure gage should indicate 90 psi minimum.
T e l l a s s i s t a n t t o s h u t o f f e n g i n e.
a .
b .
If pressure gage did not indicate 90 psi minimum, open air re-
servoir drain valve and drain air.
Disconnect pressure gage, air hose connected to street tee, and
s t r e e t t e e .
Connect air hose disconnected from street tee to elbow.
Go to step 3 below.
If pressure gage indicated 90 psi minimum, go to step 2 below.
Step 2.
Place blocks at each wheel
to prevent loader from
moving.
Engage transport/service
link (page 9-8).
Ensure that parking brake
i s a p p l i e d.
B e f o r e r a i s i n g l o a d e r f r o m
g r o u n d ,
b e s u r e t h a t
t r a n s p o r t / s e r v i c e l i n k i s
e n g a g e d.
Failure to do so may
c a u s e l o a d e r t o t u r n a n d s l ip
o f f j a c k s o r j a c k s t a n d s
c a u s i n g s e r i o u s i n j u r y o r
d e a t h.
Raise front axle and wheel off
ground.
Remove tire and wheel from axle end.
T e l l a s s i s t a n t t o s t a r t a n d o p e r a te
engine at 1000 rpm until AIR PRESS
gage needle indicates in green area.
T e l l a s s i s t a n t t o p r e s s b r a k e t r e a d le
and valve while you check if brake
pads move inward.
T e l l a s s i s t a n t t o s h u t o f f e n g i n e.
3-117
