Poweramp VS VERTICAL SPECIALTY 2.1995 - Manual (Page 13)

Servicing the VS dockleveler
With proper care, your Poweramp VS dockleveler will provide many years of satisfactory service.
Recommended Hydraulic Fluids
To assure normal operation of the unit, the following aircraft style hydraulic fluids are recommended:
♦
Aero Shall fluid #4 Code #60421 by Shell Oil Co.
♦
Mobil Aero HFA Mil-H5606A by Mobil Oil Co.
♦
Texaco Type BB
♦
Filmite No. 530
♦
Exxon "Univis J13"
Use of hydraulic fluids with equivalent specifications to those listed above are acceptable. Use of fluids
that do not have equivalent specifications can result in abnormal operation of the unit and possible
voiding of warranty.
Maintenance Locks
Poweramp VS docklevelers incorporate 3 integral locking devices that must be used whenever working
in front of or under a VS dockleveler. These devices are intended to avoid accidental lowering of the
ramp while maintenance work is being performed. When service is complete, return locks to storage
positions.
The locking devices should be engaged in the following order to prevent personnel from being
in front of an unlocked leveler.
Dual Maintenace Locks
The VS dockleveler is equipped with two locking arms for use any time the leveler is being serviced.
The arms are stored nested in the outboard structural members of the platform held by two bolts (fig. 5)
when installing, arms unbolt from storage position and rotate as shown to outside of joist with long
section projecting down in front of pit wall. Bolt securely in both sets of holes. Torque bolts to 50-100
foot pounds.
Integral Storage Prop
The storage prop is a folding arm assembly which is attached to the platform and frame (fig. 4). This
prop automatically engages and disengages during normal use but needs to be locked mechanically
during service. When servicing in front of the raised leveler, remove the locking bolt from its storage
position and insert through holes shown. This prevents any folding action in the linkage.
WARNING
WHEN A HYDRAULIC
CYLINDER IS EXTENDED,
IT MUST BE FULL OF
HYDRAULIC FLUID TO
SUPPORT A LOAD.
EXTENDING HYDRAULIC
CYLINDERS BY A MEANS
OTHER THAN HYDRAU-
LIC POWER CAN RESULT
IN SEVERE PERSONAL
INJURY OR DEATH.
10
Weekly Maintenance
1. At least once each week, operate the unit through all of its operating cycles to maintain lubrication
on hydraulic cylinders.
2. Inspect the VS dockleveler rear hinge area and lip hinge area. The hinge areas should be kept free
of debris and dirt. Buildup of foreign material in the hinge areas can cause abnormal operation of
the unit.
Monthly Maintenance
1. Lubricate as shown on lube chart figure 6, page 11.
2. Check hydraulic fluid level at plug on side of reservoir. If oil level is not flush with bottom of hole,
add appropriate hydraulic fluid, see recommended hydraulic fluids (See Fig. 7).
Preventive Maintenance