Clark NPR17 - Page 94

Lift Mechanisms and Controls
Check the function of the lift system and controls.
Push the tilt button and pull back on the multi-function control and hold
until the forks reach the full back tilt position. Push forward on the lever
to return the forks to the horizontal position. Release the lever.
CAUTION
Be sure that there is adequate overhead clearance
before raising the upright.
Pull back on the multi-function control handle and raise the fork carriage
to full height. Watch the upright assembly as it rises. All movements of
the upright, fork carriage, and lift chains must be even and smooth,
without binding or jerking. Watch for chain wobble or looseness; the
chains should have equal tension and move smoothly without notice-
able wobble. Release the lever.
If the maximum fork height is not reached, this indicates there is an
inadequate (low) oil level in the hydraulic sump tank or severe binding
within the upright.
Push forward on the multi-function control handle. Watch the upright as
it lowers. When the forks reach the floor, release the lever.
Auxiliary Controls
If your lift truck is equipped with an attachment, test for correct function
and briefly operate the attachment.
6-18 Functional Tests