Poweramp CentraAir AIR POWERED 2.2012 - Manual (Page 10)

8
4111-0023 — Jan. 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
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
(single push button) operation for ease of use.
The dock leveler can be operated two 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. 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.
The regulator supplies 95 psi to the bellows. (P)
When the platform rises to the point where there is
2-3 in. (51-76. mm) from 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