TM 5-3800-205-23-1
TROUBLESHOOTING PROCEDURES - CONTINUED
0007 00
Table 7. Scraper System Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Bowl Control Lever Binds.
1. Check for bent or damaged
a. If lever is bent or damaged,
lever.
b. If lever is okay, go to test step
2.
WARNING
Park machine on level ground, stop engine, and lower bowl/water tank to prevent injury to operator
and/or severe damage to machine.
a. Clean debris from control
2. Check bowl/ejector main
valve linkage.
control valve, inboard of right
fender for buildup of debris.
b. If problem still exists, go to
test step 3.
a. Adjust relief valve setting
3. Perform Control Valve Test
b. If problem still exists after
adjustment,
notify
DS
Maintenance to replace main
control valve.
2. Bowl Drifts After Control Lever is Released
1. Check drift of bowl hydraulic
If drift exceeds 0.31 in. (7.9
or Centered.
cylinders:
mm), go to test step 2.
a. Lift bowl 6-10 in. (15-25
cm).
b. Move control lever to hold
position.
c. After three (3) minutes,
make a mark on side of
bowl at bottom of draft
arm. Mark should also be
6 in. (15 cm) from front of
bowl side.
d. After five (5) minutes,
make a measurement for
drift.
e. Drift on a new machine
should not be more than
0.31 in. (7.9 mm).