Lull 644E-42 Operation Manual - Manual (Page 54)

52 Model 644E Origin 3/04
Operation
Low Brake Pressure Warning Indicator (1)
This light is located on the lower right side of
the front dash panel.
The light will come ON and the buzzer sounds
when service brake hydraulic system pressure
drops below the safe operating level. Under normal conditions, the light and
buzzer will go out quickly after engine start. If the light or buzzer does not
go out or comes ON during vehicle operation, shut off engine immediately,
investigate, and repair before operating. DO NOT operate vehicle when low
brake pressure light or buzzer is on.
If the low brake pressure light or buzzer remains ON, place the travel select
lever in the (N) NEUTRAL DETENT position, engage the parking brake
switch and turn the engine OFF.
Have the service brake system serviced before using the vehicle again.
Contact your local Lull Distributor immediately to repair the system.
WARNING:
Operating the vehicle with the service brake system
malfunctioning will cause reduced braking ability or no braking ability
when the service brake pedal is depressed. Death or serious personal
injury could result from the inability to stop or slow the vehicle.
OM1600
0000000
RPM X 100
5
10
15
30
20
25
F
1/2
E 104
176
80
248
120 °C
°F
D
r/min
OU0010 1
2
3 4
5