Poweramp CentraAir AIR POWERED - Manual (Page 10)

8
4111-0034 —July 2012
Aug 2012
Component Identification
A — Lip
B — Lip Assist Rod
C —Lip Linkage Assembly
D — Lip Latch Assembly E — Lip Maintenance Prop Pivot
F — Lip Actuator Chain Spring
G — Lip Actuator Chain
H — Lip Actuator Chain Adjustment Link
(not shown)
I — Lip Keepers (2 used)
J — Air Bellows
K — Main Frame
L — Maintenance Prop
M —Toe Guard (2 used) N —Raise Button
O —Safety Legs
P —Air Control Valve
Q —Lanyard
R —Filter/Regulator
The CA dock leveler uses Compressed Air with a lanyard
or (single push button) operation for ease of use.
The dock leveler can be operated three different
ways. 1.) RAISE button (N) on the control panel. This
activates an electric solenoid (P). The solenoid allows
compressed air into the air bellows causing the platform
to rise. Releasing the RAISE button allows the platform
to lower.
2.) RAISE button (N) on the control panel. Allows allows
compressed air into the air bellows causing the platform
to rise. Releasing the RAISE button allows the platform
to lower.
3)Pull up and hold the Lanyard chain in the rear of the
unit until platform and lip are fully extended. Releasing
the chain allows the platform to lower.
The regulator(R) supplies 95 psi to the bellows. (J)
When the platform rises to with in 2-3 in. (51-76. mm)
of its full raised height, the lip spring (F) and lip actuator
chain (G), causes the lip linkage assembly to push the
lip out and up.
The lip assist spring (not shown) also helps keep the lip
extended. When the lip is fully extended, the lip latch
cable engages the lip latch assembly, locking the lip in
the extended position. The dock leveler has reached its
full height when the lip is fully extended.
To lower the platform, release the lanyard (Q) or RAISE
button (N).
The platform will lower until the extended lip rests on the
truck bed. If the lip did not fully extend or there is no
truck at the dock the platform will lower until one of the
following conditions occur:
• Lip is resting in lip keepers (cross-traffic position).
• Leveler went to the below-dock position, lip folds
automatically, leveler rests on the safety legs (below
dock position).
• Leveler went to the below dock position with operator
holding the safety leg retract cable (not shown),
safety legs are retracted, lip folds automatically
causing dock to rest in the full below dock position.
THEORY
INTRODUCTION
R
N
Q
P
K
E
D
G
B
A
O
I
J
M
F
L
C