Poweramp POWERHOOK P4111-0010 5.2006 - Manual (Page 29)

27 4111-0010 — December 2004
MAINTENANCE
Daily Maintenance
• Make sure that all the Inside and Outside signal
lights work.
Weekly Maintenance
• Operate the dock leveler and PowerHook through
the complete operating cycle to maintain
lubrication.
NOTE: To thoroughly inspect the platform hinge
area, put the platform in the full below-dock
position.
• Inspect the platform hinge and the lip hinge areas.
The hinge areas must be kept free of dirt and
debris. Build-up of foreign material in the hinge
areas will cause abnormal operation.
Quarterly Maintenance
• Lubricate the following areas with light weight
machine oil:
(A)— Lip hinge area unless equipped with grease
fittings (apply oil to the top of the entire
length of lip hinge when platform is at the full
below-dock position and lip is folded).
(D)— Dual-lanyard lever pivot.
(E)— Platform hinge area (apply oil to top of all
platform hinges when platform is at the full
below-dock position).
(G)— Toe guard hinges (along full length of top and
bottom hinges).
(H)— Platform cylinder-to-platform frame pin.
(J)— Lip cylinder-to-platform frame pin.
(K)— Lip lifter and lift cylinder pin.
• Lubricate the following areas with white lithium
grease:
(B)— Valve lever pivot and top of logic block spool
valve.
(F) — All platform cylinder trunnions.
(L)— Toe guard pivots (where toe guard strut
contacts pivot).
NOTE: Apply grease to lip hinge grease fittings if
equipped.
M — Reservoir
N — 2 in. (51 mm) (From Top of
Reservoir)
P — Breather Cap
Q — Fluid Level
• Check reservoir fluid level (Q):
1. Put the dock leveler platform at the full
below-dock position.
2. Turn OFF all electrical power to the leveler.
3. Remove inspection plate (C).
4. Remove breather cap (P).
5. Measure fluid level. The fluid level should be
approximately 2 in. (51 mm) (N) from top of
reservoir (M) with platform at the below-dock
position.
6. Add hydraulic fluid if necessary. Use only
recommended fluid.
7. Install breather cap and inspection plate.
8. Turn ON electrical power to the leveler.
9. Return the platform to the cross-traffic position.
IMPORTANT
Failure to properly lubricate the dock leveler will
cause abnormal operation of the leveler.
IMPORTANT
A low fluid level or the use of hydraulic fluids not
equivalent to the fluid types recommended, will
cause abnormal operation of the leveler and WILL
void warranty.
M
N
Q
P