Table E-3. Qualification Procedure
Troubleshooting
Reference
Command
Response
(Figure No.)
1. Prerequisites for test (with engine not running).
a. Check oil in right angle drive
.Oil in right angle drive at proper
level ({see lubrication guide).
2. Engage hydraulic pump with clutch handle.
Clutch engages hydraulic pump.
3. Place bulldozer operating control handle in the RAISE
Moldboard elevates to full-raised
(R) position (Note: If moldboard is already in raised
position.
position and carrying hooks are engaged, disengage
carrying hooks).
4. Place bulldozer operating handle in the LOWER (L)
Moldboard lowers to ground
E7
position..
level
5. Place bulldozer operating handle in the RAISE (R)
Moldboard remains in mid
E-7
position and allow moldboard to raise to mid
position for one (1) minute
between ground level and carrying hook height, then
without the moldboard drifting
allow bulldozer operating handle to return to HOLD (H).
downward more than 1/4 inch
position. Allow moldboard to remain in mid
position for
one (1) minute.
6. Place bulldozer operating handle in the LOWER (L)
Moldboard lowers to ground
E-7
position and allow moldboard to lower to ground level..
level
Note. Use a stop watch to time the response of the next
step.
7. Place bulldozer operating handle in the RAISE (R)
Moldboard elevates from ground
E-7
position and allow moldboard elevate to the full raised
level to the full raised position
position..
within 5.0 to 6.0 seconds
8. Place bulldozer operating handle in the FLOAT (F)
Moldboard drifts downward to
E-7
position and allow moldboard to drift downward to
ground level.
ground level
9. Place bulldozer operating handle on RAISE (R) position
Moldboard elevates to the full-
E-7
and raise moldboard to full-raised position
raised position.
10. Disengage hydraulic pump with clutch handle.
Clutch disengages hydraulic
pump.
early model (M8A3) bulldozer.
For common
E-27. Schematic diagrams and locational views
troubleshooting routines, refer to paragraph 3-32 and
aids for the peculiar troubleshooting routines for the
AE-9
