Gradall 544D-10 (9136-4142) Operation Manual - Manual (Page 43)

Form No. 20220 z z z z z 544D-10 Owner/Operator Manual
16.0
The following information assumes the handler cannot be moved under
its own power.
Before moving the handler, read all of the following information to understand
options available. Then select the appropriate method.
The ability to steer the handler increases the safety of moving the unit in
some situations. The steering system permits manual steering if engine or
power assist feature fails.
Remember:
• Although manual steering is possible without power assist, steering will
be slow and will require much greater force.
MOVING SHORT DISTANCES
If it is only necessary to move handler a short distance, less than 100 feet
(30m), it is permissible to use a vehicle of sufficient capacity to tow the unit
with no previous preparation. Drive wheels will not roll. If the unit must be
moved more than 100 feet (30m), but less than 200 yards (182m), it is
permissible to use a vehicle of sufficient capacity to tow unit after you:
• Activate “Tow Bypass.” (See Below)
• Release parking brake. (See Page 16.1)
MOVING LONGER DISTANCES
If the handler must be moved more than 200 yards (182m), it must be
loaded on to a trailer of sufficient capacity.
TO ACTIVATE TOW BYPASS
Figure 16-1
1. Shut down machine and block wheels.
2. Mark position of relief valve cartridge (small hex).
3. Hold large hex to prevent movement and loosen reverse relief valve cartridge
(small hex) two full turns.
4. Repeat steps 2 and 3 for forward relief valve. Front axle drive is now bypassed.
5. Disengage rear drive hubs (Fairfield hubs do not disengage).
6. Before returning machine to service, be certain to return relief valve
cartridges to original position and re-engage rear drive hubs.
MOVING HANDLER IN EMERGENCY
WARNING !
Towing handler with all wheels on
ground for more than 200 yards
(182m) could cause serious
damage to hydraulic drive
components.
NOTE!
Forward relief valve is located on
bottom of pump case directly below
reverse relief valve.
LARGE HEX
REVERSE RELIEF
VALVE
SMALL HEX
Do not operate hydrostatic drive
system with rear hubs disengaged
as the hydraulic rear-drive motors
may be severely damaged.
CAUTION !