START-UP & ADJUSTMENTS
MI35.2507
12APR18
Do NOT operate system without having the ground
FIGURE 12
16000# JACK
FIGURE 13
SET SCREW
ADJUSTING
HEAVY DUTY
LEVELING
CAP
UNITS
ADJUSTING NUTS
SET SCREWS
FIGURE 11
9000# JACK
LOWER
ADJUSTING
LOW PROFILE
STANDARD &
UNITS
NUT
UPPER
ADJUSTING
NUT
STOP
A. HYDRAULIC START-UP
1. PRIMING PUMP
JOYSTICK:
Check the system for hydraulic leaks.
Check that the correct jacks are operating as the control
lever is operated.
Refill hydraulic tank to within 1" of the top after all jacks have
have been operated.
B. JACK ADJUSTMENTS
Always make the vertical adjustment
first. If the vertical adjustment is changed at any time, be
sure to check the horizontal adjustment. Vertical adjustment
is changed by adjusting the lock (adjusting) nuts on the actuator
cable. (FIGURE 11) If the jack stopped short of vertical, tighten the
adjusting nuts. If the jack goes past vertical, back the adjusting
Horizontal stop is adjusted by turning the set screws located
just inside the cable locknuts. The jack can be adjusted down
to provide clearance for objects which may interfere with the
operation of the jacks. The horizontal stop must be adjusted to
provide clearance in case the jack extends in the horizontal posi-
tion. The jack must be able to fully extend in the horizontal posi-
tion without interfering with suspension components, tanks,
etc.
Each jack should be checked to be sure that it is vertical when
it swings down. To do this retract all jacks, then extend each
jack until it is close to but not touching the ground. Each jack
it can be adjusted by loosening the lower actuator nut and
tightening the upper actuator nut. (FIGURE 12) If the jack
provide clearance for objects which may interfere with the
operation of the jack (FIGURE 12). The stop must be adjusted
so that the jack can be fully extended in the horizontal pos-
ition without interfering with suspension components or tanks,
etc.
If the jack stopped short of being vertical,
the jack went beyond vertical, loosen the set screw and turn
the adjusting cap counterclockwise. After each counterclock-
wise adjustment, the weight of the coach must be applied to
the jack to make the adjustment effective. Do NOT adjust cap
more than one turn without cycling the jack (FIGURE 13). The
horizontal stop on the heavy-duty jack is adjusted by adding
washers under the urethane stop.
The horizontal stop can be adjusted up or down in the slot to
loosen the set screw and turn the adjusting cap clockwise. If
wire grounded properly to the chassis.
Consult the respective operator’s manuals for specific operat-
ing instruction for the system being installed.
6000# JACK
PART IV
NOTE:
1. 6000# JACKS:
2. 9000# JACKS:
3. 16000# JACKS:
- KICK DOWN JACKS ONLY
If the jack stopped short of being vertical
must be adjusted so it can extend in the horizontal position
without interfering with any suspension components, tanks,
etc.
goes past vertical reverse the process.
nuts off. Be sure to adjust each nut the same number of turns.
To prime the pump turn the ignition key on, then
push the "ON" button. Move the STORE levers to the operate
position. Push the jack control lever to the front extend position.
The lever must be moved to the fullest extent of its travel. This
can be determined by a lower pitch sound from the pump. Ex-
tend the two front jacks until they bump the ground, then RE-
TRACT and refill the tank. Extend the two rear jacks until they
bump the ground, then RETRACT and refill the tank. Care
should be taken not to run the pump out of fluid as it may da-
mage the pump.
should be done in 3-second intervals until the pump is primed. This
