STEERING SYSTEM - OD1605 - LESSON 1/TASK 1
The vehicle does not move at this time so the engine is
stopped and the STE-M1/FVS (VTM only) is removed from jack 1A1J14 or
jack 1A1J15 (DCA 3 or DCA 13) as described in paragraph 3f on page
SGT Fields finds that the problem is with
selection system and reports it to the motor sergeant.
(2) Situation #2.
The motor sergeant informs SGT Fields that
another mechanic, familiar with the gear selection system, will
continue troubleshooting this vehicle, while SGT Fields performs
troubleshooting on another vehicle that has been brought to the motor
pool with steering malfunctions.
SGT Fields test operates this vehicle and deducts that the steering
yoke is hard to rotate.
Because he already has all the required
equipment for troubleshooting the steering system of this vehicle, he
only has to make sure that the engine is stopped, the turret is shut
down, and that the FIRE SUPPRESSION switch is in the MANUAL position.
Once this is accomplished, he begins the troubleshooting steps
Step 1. Similar to the previous troubleshooting procedure, the first
step that SGT Fields performs is to rotate the steering yoke to
determine if the yoke is frozen, hard to rotate, or sticking. Unlike
the previous vehicle, he finds that the steering yoke on this vehicle
is hard to rotate.
He now rotates the steering yoke to the right and to the
left, and visually checks for binding on either stop of the steering
Step 3. SGT Fields concludes that the steering yoke does not bind on
either stop, so he lowers and secures the trim vane, and opens and
secures the power unit access door in order to check lever (1) (see
figure 8 on the following page).
Step 4. To perform this check on the lever, he must disassemble the
lever by removing locknut (2), screw (3), three washers (4), and
connecting link (5)(see figure 8).