3-5.
TM 5-3805-262-10
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
17. PARKING BRAKE DOES NOT HOLD
Step 1.
Start and operate engine at 1000 rpm until AIR PRESS gage pointer
indicates in green area.
Push in and momentarily hold in knob of parking brake control.
Release parking brake control knob.
Check that parking brake control knob stays in and parking brake is
released.
a. If parking brake control knob does not stay in or parking brake
does not release, notify organizational maintenance (parking
brake control must be removed and repaired).
Step 2.
b. If parking
leased, go
brake control knob stays in and parking brake is re-
to step 2 below.
Turn off engine.
Depress brake treadle valve and declutch treadle valve until AIR
PRESS gage pointer is approximately 1/4 inch into red zone.
Check that parking brake control knob comes out and parking brake
engages.
a. If parking brake valve knob does not come out or parking brake
does not engage, notify organizational maintenance (parking
brake control must be removed and repaired).
b. If parking brake valve knob came out and parking brake engaged,
no further action is required.
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