Maintenance And Lubrication; Hydraulic Fluid Level - Kelley HK User Manual

MainTenance anD LUbricaTion

Be certain, before climbing into the dock leveler pit or
doing any maintenance or repair under the dock leveler,
that: 1) THE MAINTENANCE STRUT AND LIP LOCK ARE
SECURELY IN PLACE [see Fig. 36 on page 33] and 2) the
power is disconnected and properly tagged or locked
off.
Before servicing the dock leveler, read and follow the
Safety Practices on page 3 and the Operation section of
this manual.
Place barricades on the dock floor around the dock
leveler pit and in the driveway in front of the pit while
installing, maintaining or repairing the dock leveler.
Use only lubricants shown. lmproper lubrication or
adjustments may cause operational problems.
Check all labels every 90 days. See page 31 for location
and part numbers. Replace if required.

HyDraULic fLUiD LeVeL

The hydraulic fluid level should be checked when the
leveler is resting on the maintenance post with the lip
pendant.
If the leveler is equipped with A.R.T.D., allow the deck
to descend to the maintenance post and the lip to fall
pendant, then push the E Stop button.
MainTenance anD LUbricaTion cHarT
Hydraulic
Oil
Reservoir
Once per year drain,
flush and change oil.
Lubrication
*Use only oils specified
Remove and clean hyd.
oil pump strainer once
Cleaning
per year. Perform during
hyd. oil change.
*acceptable Hydraulic oils:
Mobil aero Hfa (49011)
exxon Univis grade Ji3
Texaco aircraft oil #1554
U.s. oil co.,inc. #Zfi-5606 (Low Temp.)
32 6004754F — HK and HK-S Hydraulic Dock Leveler, 3 Button — Safe
©2009 4Front Engineered Solutions, Inc.
MAINTENANCE AND LUBRICATION CHART
Dock Level
Lip & Ramp
Support Leg
Hinge Pins
Cam & Pivot Pins
Every 90 Days
Every 90 Days
SAE 30 On
Pivot Pins &
SAE 30
Grease Cam
As Required To As Required To
Remove Debris Remove Debris
Fig. 35
Lip hinge
assembly
Cylinder
pivot pins
Cylinder
Pivot Pins
Every 90 Days
SAE 30
Every 90 Days
As Required To
or As Required To
Remove Debris
Remove Debris
Dock level support leg
cam and hinge
Ramp
Hydraulic oil
hinge pins
reservoir
Rear
Dock Leveler
Support
Pit
Legs
Not Required Not Required
As Required To
Remove Debris
T
Frame January 2009
™