Table 3-3. Qualification Procedure - Continued
Troubleshooting
Reference
Command
Response
(Figure No.)
e. Check bulldozer operating
control handle for proper motion
without binding or looseness.
f. Check oil in right-angle drive
Oil in right-angle drive and magnetic
LO 9-2590-213-12
and magnetic clutch for proper
clutch at proper level (see
level.
lubrication order).
g. Ensure bulldozer operating
control handle is in HOLD (H)
position.
h. If tank is equipped with
generator switch, ensure switch is
closed.
2. Place MASTER SWITCH in the
MASTER SWITCH indicator is
TM 9-2350-224-20
ON position.
ON.
3. Start engine and allow engine to
idle.
4. Check oil in reservoir for proper
Oil in reservoir at proper level (see
LO 9-2590-213-12
level.
lubrication order).
5. Place HYDRAULIC PUMP
HYDRAULIC PUMP indicator is ON.
switch in the ON position
Clutch engages hydraulic pump.
6. Allow engine to operate at 1500
RPM.
7. Place bulldozer operating control
Moldboard elevates to full-raise
3-2
handle in the RAISE (RI position
position
(Note: If moldboard is already in
raised position and carrying hooks
are engaged, disengage carrying
hooks.
8. Place bulldozer operating handle
Moldboard lowers to ground level
3-2
in the LOWER (L) position.
9. Place bulldozer operating handle
Moldboard remains in mid-position
3-2
in the RAISE (R) position and allow
for one (1) minute without the
moldboard to raise to mid-position
moldboard drifting downward more
between ground level and carrying
than 1/4 inch.
hook height, then allow bulldozer
operating handle to return to HOLD
(H) position. Allow moldboard to
remain in mid-position for one (1).
minute.
10. Place bulldozer operating
Moldboard lowers to ground level
3-2
handle in the LOWER (LI position
and allow moldboard to lower to
ground level
Note: Use a stop watch to time
the response of the next step.
11. Place bulldozer operating
Moldboard elevates downward to
3-2
handle in the RAISE (RI position
ground level to the full-raised
and allow moldboard to elevate to
position within 5.0 to 6.0 seconds.
the full-raised position.
12 Place bulldozer operating
Moldboard drifts downward to
3-2
handle in the FLOAT (F) position
ground level.
and allow moldboard to drift
downward to ground level.
3-7
