National Crane Published 5-27-2018 Control # 039-06 10-13
800D CRANE INSTALLATION
INITIAL CRANE RUN IN PROCEDURE
1. With the unit in an open area for testing that will permit
full operation of all its functions, engage the PTO and run
the truck engine at idle to activate the pump
(approximately 600 rpm). Turn the crane power switch
on and operate the crane and outriggers though all of
their functions at least six (6) times to purge cylinders of
air. Operate the control valves slowly with the truck
engine at idle and cycle each cylinder through its
complete stroke each time. Check to see that movement
of outriggers and boom correspond with direction
indicated on switches and levers. Refer to hydraulic or
electrical schematic and parts pages to correct any
problems.
Note: Add oil to reservoir as required to keep air from
reentering the system.
2. Set throttle according to engine RPM and PTO ratio to
get 2500 RPM pump shaft speed.
3. When all cylinders have operated through complete
cycles, stow crane and place the outriggers in the up
position. The oil level should be visible near the top of
the sight gage.
4. Lift and stability test must now be performed on the unit.
(See “Stability Test” page.) Hoist and crane tests should
be conducted to insure proper performance.
5. After testing is completed, the mounting bolts and all
cable clamp bolts should be retorqued to specifications.
Upon completion, overall height of crane vehicle
combination must be measured and posted inside of cab
informing driver of overall height.
Fo
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