Poweramp POWERHOOK SERIES - Manual (Page 35)

OPTIONAL EQUIPMENT ADJUSTMENTS
Standard leveler with Powerhooks are equipped with
Interlock unless leveler has option of Auto Return To
Dock (ARTD).
The ARTD allows the platform to automatically return
to the cross-traffic (stored) position after the truck
departs. The ARTD uses a proximity switch (B) located
under the platform and a piece of angled steel called
the target (E) that is attached to the lip hinge tube (F).
The PLC provides a six-second delay after the
platform has lowered to the full below-dock position,
after which, the platform will return to the cross-traffic
position. The switch also contains an indicator light
(H) that can be used for diagnosing and adjusting the
switch.
NOTE: The proximity switches has an indicator light
at the back of the housing and some have the
light at the side of the housing.
A— Cable
B— Proximity Switch
C— Bracket
D— Lock Nuts E— Target
F— Lip Hinge Tube
G—Platform Lip
H— Indicator Light
Adjust Auto Return To Dock (ARTD) Adjust the ARTD as Follows:
1. Raise platform fully and engage the maintenance
prop in the service position. Allow platform to rest
on the prop so the lip will fully fold until it contacts
the lip stops.
2. Turn OFF all electrical power to the dock leveler.
Attach safety lockout and tag-out devices.
When service under the dock leveler is required,
always lock all electrical disconnects in the OFF
position after raising the platform and engaging the
maintenance prop. Failure to do this may result in
serious personal injury or death.
When service under the dock leveler is required with
power on. The platform must be on the maintenance
prop and locked out. The are must be marked with
safety cones and sighs Failure to do this may result
in serious personal injury or death.
Always post safety warnings and barricade the
work area at dock level and ground level to prevent
unauthorized use of the dock leveler before
maintenance is complete. Failure to do this may
result in serious personal injury or death.
Always stand clear of the dock leveler lip when
working in front of the dock leveler.
The maintenance prop MUST be in the service
position when working under the dock leveler.
For maximum protection, use an OSHA approved
locking device to lock the maintenance prop in
the service position. Only the person servicing
the equipment should have the key to unlock the
maintenance prop.
Unless the dock leveler is equipped with a tethered
remote, two people are required to engage the
maintenance prop: one person to operate the unit,
the other person to engage the maintenance prop.
Failure to follow these instructions may result in
serious personal injury or death.
A
C
E
D
F
G
H
B
4111-0010 — Nov 2010 33