31
4111-0016 — Aug. 2019
© 2019 Systems, LLC
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, decrease dimension
(
A
), so that the target is in the sensing range of the
switch. Typical factory setting for (
A
) is approximately
1/8”. Make adjustments at switch until leveler does
not raise when the vehicle restraint is not engaged
on transport vehicle RIG bar. See Figure 31.
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 disengage, proceed with Step 7. If the vehicle
restraint DID disengage, move the switch farther from
the target or bend the target to increase dimension
(
B
) so that the target is not in the sensing range of
the switch. Make adjustments at switch and/or target
until vehicle restraint does not disengage transport
vehicle. See Figure 31.
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.
Work lip by hand when making adjustments to
make sure that target does NOT contact switch as
lip extends.
Figure 31
Target
A
A
B
B
C
D
TOLERANCES
(UNLESS OTHERWISE NOTED)
FRACTIONAL:
1/32"
DECIMAL:
.00 =
.01"
.000 =
.005"
ANGULAR:
1
DRAWN BY
CHECKED BY
DRAWING NO.
DATE
BDK
11/12/2018
S Y S T E M S
L o a d i n g D o c k E q u i p m e n t
P O W E R A M P
M C G U I R E
D L M
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of use and/or manufacture and/or sale. Possession of this print does not convey any permission to reproduce, print or manufacture the article or articles shown therein,
such permission to be granted only by written authorization signed by an officer or other authorized agent of Systems, LLC thereof.
MATERIAL
STOCK NO.
LIP SWITCH
ASSEMBLY VIEW
REV A - ECN 18-066
1/8
1/8
A
B
Below-Dock Position
Lip Outside Keepers
-
Target not in sensing
range of switch.
Stored Position
Lip Fully Folded
-
Target in sensing range
of switch.
Proximity Switch
Proximity Switch
Target
Adjust Dock Leveler and Vehicle Restraint Interlock
