29
ADJUSTMENTS
1. The dock leveler should be in the cross traffic
position before beginning tests.
2. Back a transport vehicle with RIG bar into dock. A
test fixture may be used to simulate the RIG bar.
Use care to avoid damage to the equipment or harm
to the operator.
3. Press the RAISE button. The dock leveler should
NOT raise. If the leveler did not raise, proceed with
step 4. If the leveler did raise, loosen U-bolts (
A
)
and adjust microswitch mounting plate forward so
that switch feeler arm (
B
) is engaged by lip cylinder
yoke when stored. See Figure 29.
4. Momentarily press the ENGAGE button. The vehicle
restraint automatic engage cycle will be activated
and the restraint will engage the transport vehicle
RIG bar.
5. Raise the dock by pressing the RAISE button until
the lip is fully extended. Release the RAISE button.
The leveler will drop to the floor of the transport
vehicle. If a RIG test fixture is used it should allow
the leveler to drop to the full below-dock position
without the contact between the lip and test fixture.
6. Press the RELEASE button. The vehicle restraint
should NOT disengage from the transport vehicle
RIG bar or test fixture. If the vehicle restraint did
NOT engage, proceed with step 7. If the vehicle
restraint DID disengage, loosen U-bolts (
A
) and
adjust microswitch mounting plate backward so that
switch feeler arm (
B
) is not engaged by lip cylinder
yoke in below-dock position. See Figure 29.
Note:
If adjustments are required in this
step, make sure that the interlocking described in
step 3 is still in effect after step 6 adjustments are
complete.
7. Press the RAISE button. The dock leveler will
raise. The leveler lip will fold as the platform raises.
When the lip is fully folded, release the RAISE push
button. The leveler will descend to the cross traffic
position.
8. Momentarily press the RELEASE button. The
vehicle restraint will return to the stored position.
Adjust Dock Leveler and Vehicle Restraint Interlock
Figure 29
A
B
4111-0015 — Apr. 2020
© 2020 Systems, LLC
