Advertisement
Item
Service brake pump flow
check
Hydraulic oil must be at
operating temperature
for the check.
Engine OFF.
S
S
ervice brake capacity
check
Engine running.
Description
Stop engine.
Operate brake pedal approximately 20
times.
Start engine and run at low idle.
Record number of seconds
required for low brake pressure
indicator lamp to go out.
LOOK : Indicator lamp must go
out in less than 10 seconds from
time engine starts.
NOTE : Indicator will not come on
approximately 1 second after
starting engine.
OFF
Turn inching switch OFF.
ON
Apply service brakes, release
park brake and put transmission
in 2nd forward.
Increase engine speed to high
idle.
OFF
ON
LOOK : Machine may not move
or move at a very slow speed.
Repeat check three times to
ensure accurate results.
4-34
Service action
OK
Check completed.
NOT OK
Check for brake circuit
leakage.
Go to next page.
IF OK
Install a cap on line
connected to inlet of brake
valve and repeat pump
flow check.
If time does not decrease,
check for worn brake
pump.
OK
Check completed.
NOT OK
Check brake pressure in
group 3.
IF OK
Inspect brake disk.
Advertisement
