TM 5-3800-205-23-1
TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
0005 00
EMS AIR SYSTEM CHECK - CONTINUED
DIFFERENTIAL LOCK PEDAL
PARKING BRAKE
f.
Repeat step d. Machine should resist turning when differential lock is engaged.
g.
If machine makes a complete left and/or right articulation, refer to Troubleshooting (WP 0006 00).
h.
Release pedal.
i.
If machine does not make a complete left and/or right articulation, refer to Troubleshooting (WP 0006 00).
EMS AIR SYSTEM CHECK
1.
2.
EMS Air System Check.
a.
Start engine (TM 5-3800-205-10-1 or TM 5-3800-205-10-2) and allow air pressure to reach 75 psi (520 kPa).
NOTE
Action alarm and action light for low air pressure will operate until air pressure is 65 psi (450 kPa).
b.
If action alarm and/or action light do not operate, stop engine.
c.
Check electrical connections at action alarm, action light, and parking and emergency brake pressure switches.
Check action light bulb. If connections are good and bulb is okay, connect a continuity light across terminals of
one pressure switch.
NOTE
Air pressure must be less than specifications of pressure switches.
d.
If continuity light does not come on, replace pressure switch (WP 0047 00).
e.
Perform steps c and d for other pressure switch.
f.
If action alarm does not operate, connect a continuity light across terminals of pressure switch.
g.
If continuity light does not come on, replace pressure switch (WP 0047 00).
h.
If action alarm and/or light operate above 60 psi (415 kPa), stop engine.
i.
Install a new pressure switch or pressure switches (WP 0047 00).
j.
Start engine (TM 5-3800-205-10-1 or TM 5-3800-205-10-2).
k.
Allow air pressure to reach approximately 75 psi (520 kPa).
l.
Slowly open air tank valve and bleed air pressure.
0005 00-11
