TM 5-3805-296-10
0012
Table 1. Preventive Maintenance Checks and Services (PMCS) Continued.
ITEM TO BE
CHECKED OR
EQUIPMENT NOT
ITEM
MAN-
SERVICED
PROCEDURE
READY/AVAILABLE IF:
NO.
INTERVAL
HOURS
77
Every 250
Brake Air
Perform the following test of
Drop of air pressure is
Engine
System
brake air system:
greater than 5 psi (35
Hours or
Pressure
kPa) in 10 minutes.
a. Start engine (WP 0005).
Monthly
Check
b. Allow air pressure to reach
110 10 psi (758 69 kPa)
c. Apply and hold service
brake pedal, and then shut
down engine. Continue to
hold pedal.
d. Reading on air pressure
gauge should not drop more
than 5 psi (34 kPa) after the
engine is stopped for 10
minutes.
78
Every 250
Low Air
Perform the following test of
Low air pressure
Engine
Pressure
brake air system:
indicator or buzzer does
Hours or
Indicator and
not sound at 65 psi (448
a. Start engine and allow air
Monthly
Buzzer
kPa).
pressure to reach 110 10 psi
(758 69 kPa).
b. Shut down engine, but
leave battery disconnect
switch on. Ensure
transmission is in N (Neutral)
and park brake is engaged.
c. Apply and release service
Indicator light and/or
buzzer do not come on.
brake pedal until air pressure
drops to 65 psi (448 kPa). Air
pressure indicator light should
illuminate. Buzzer should
sound.
0012-72
