Presto WPS Series, WP Series Installation, Operation And Service Manual
WP & WPS
Series
Work Positioners
Installation, Operation
and Service Manual
Model Number ___________________
Serial # _________________________
Date placed in service _____________
IMPORTANT: READ CAREFULLY
BEFORE INSTALLING OR OPERATING LIFT
Part orders are subject to a $50 miminum charge.
March 2010
This manual was current at the time of printing. To obtain the latest,
most updated version, please contact Presto Lifts Customer Service
Department or go to our website: www.PrestoLifts.com -- you will
nd a complete list of current owner’s manuals to print.
PRESTO OWNER’S MANUAL Page 2 WP & WPS Series Work Positioners
TABLE OF CONTENTS
S E C T I O N 1:
Introduction .........................................................................................................................................................3
S E C T I O N 2:
Safety ..................................................................................................................................................................3
S E C T I O N 3:
Installation ...........................................................................................................................................................3
A. Inspection ....................................................................................................................................................3
B. Removing from Pallet ..................................................................................................................................3
S E C T I O N 4:
Operation .............................................................................................................................................................4
A. Operating Instructions ...................................................................................................................................4
B. Daily Operations Maintenance Checks .........................................................................................................4
S E C T I O N 5:
Maintenance ........................................................................................................................................................4
A. Instructions ....................................................................................................................................................4
B. Monthly Operations Maintenance Checks ...................................................................................................4
S E C T I O N 6:
Service .................................................................................................................................................................5
RESTOCKING POLICY ..................................................................................................................................................15
RETURN MATERIALS AUTHORIZATION (RMA) PROCEDURES ..........................................................................15
LIMITED WARRANTY ...................................................................................................................................................20
List of Figures
Figure 1: Model WP ........................................................................................................................................ 7
Figure 2: Model WPS ................................................................................................................................... 14
Figure 3: WP & WPS Rear Voew ................................................................................................................. 15
Figure 4: Steering Assembly ....................................................................................................................................................... 17
Figure 5: Floor Lock Assembly .................................................................................................................................................. 18
Figure 6: Chain Roller Assemblies ............................................................................................................... 19
Figure 7: 1000, 1500 & 2700 lb. Cylinder .................................................................................................... 20
Figure 8: 2000 lb. Capacity Cylinder ............................................................................................................ 21
Figure 9: Work Positioner Back Plate Assembly .......................................................................................... 22
Figure 10: DC Power Wiring Schematic ...................................................................................................... 24
Figure 11: Standard DC Power Pack Illustration .......................................................................................... 25
Figure 12: DC Power Pack With Remote Control Illustration ..................................................................... 26
Figure 13: AC Power Wiring Schematic ....................................................................................................... 27
Figure 14: Standard AC Power Pack Illustration .......................................................................................... 28
Figure 15: AC Power Pack With Remote Control Illustration ...................................................................... 29
Table 1: Steering Components ........................................................................................................................ 7
Table 2: Cylinder Components ..................................................................................................................... 14
Table 3: Replacement Parts ........................................................................................................................... 15
PRESTO OWNER’S MANUAL Page 3 WP & WPS Series Work Positioners
List of Tables
S E C T I O N 1
INTRODUCTION
This manual attempts to provide all of the information necessary for the safe and proper installation, operation and maintenance of Presto’s Battery Operated Work Positioner. It is important
that all personnel involved with the installation,
maintenance or operation of the Work Positioner
read this manual. Additional manuals are available at www.prestolifts.com
The battery-operated Work Positioner is equipped
with a data plate that has a serial number and
model identication. Please refer to these numbers when ordering parts or requesting further
information.
The battery-operated Work Positioner is designed
for lifting, lowering and positioning a wide variety of loads. Call Presto for further instructions
where unique situations arise that are not covered
in this manual.
The battery-operated Work Positioner is designed
for only indoor, non-hazardous locations. These
units are not for personnel lifting. All equipment
is manually propelled and has a hydraulically
powered vertical travel.
S E C T I O N 2
SAFETY
The battery-operated Work Positioner is a very
powerful lift capable of doing large amounts of
work.
Carefully read this manual before installing
or operating this lift. Some hazards have been
identied that may occur during the installation,
maintenance and use of this lift.
All personnel must stand clear of the lift
•
while in motion.
Do not put hands or feet under the forks or
•
platform.
Do not stand underneath the forks or plat-
•
form.
Do not stand in front of the Work Positioner
•
while in motion.
Do not stand, sit or climb on the lift.
•
Do not use the lift on soft, uneven or unstable
•
surfaces.
Do not exceed the load center or capacity.
•
S E C T I O N 3
INSTALLATION
A. INSPECTION
The lift is tested and inspected prior to shipment.
Inspect the Work Positioner completely upon receipt, to determine if there is any damage caused
during shipment by the freight company and that
the lift is complete. A freight claim must be led
with the freight company if damage is apparent. Do Not use the lift if there appears to be any
damage. Check the following with the lift in a
collapsed position:
Check for signs of damage especially to the
•
back cabinet that houses the battery, electrical/hydraulic power pack.
Check all connections for tightness. Is there
•
hydraulic uid visible?
Check base frame for dimensions and struc-
•
tural integrity.
Inspect for any bent or damaged metal parts.
•
B. REMOVING FROM PALLET:
Remove all packaging materials prior to removing the lift from the pallet. Visually inspect the
lift as closely as possible.
WARNING!
Do not perform any repair work on lifts if
•
there is a load on the forks or platform.
Do not perform any repair work if the forks
•
or platform is in the raised position.
PRESTO OWNER’S MANUAL Page 4 WP & WPS Series Work Positioners
Carefully pick up the lift taking into consideration the center of gravity of the lift with an
overhead hoist or forklift. Use a hoist and nylon
sling with a minimum of 2,000-lb capacity if you
choose to pick the lift up with an overhead hoist.
Pick the lift up by the top cross member of the
lift. Have all personnel completely cleared from
the area because the lift will begin to swing when
it is clear of the pallet.
Pick the lift up approximately six inches above
the pallet. Once raised and secure remove the
pallet from below the lift then lower the lift.
S E C T I O N 4
OPERATION
A. OPERATING INSTRUCTIONS:
To raise the lift, push the control handle or
1.
activate the UP BUTTON on a remote control.
To lower the lift, pull the control handle or
2.
activate the DOWN BUTTON on a remote
control.
Whenever the controls are released, the lift
3.
stops.
AUTHORIZED OPERATORS SHOULD READ
AND UNDERSTAND ALL INSTRUCTIONS,
PRECAUTIONS AND WARNINGS. IMPROPER USE OF THIS LIFT COULD RESULT IN
INJURY AND/OR DAMAGE TO THE LOAD
AND/OR EQUIPMENT.
Inspect the lift for damaged or worn parts.
•
Do not use if not in safe operating condition.
Use lift only on hard level surfaces.
•
Make sure load is evenly distributed, not
•
loose or unstable and is as far back as possible on the platform or forks. Do not pick
up loads on the tips of the forks or edge of
platform.
Adjust forks to the maximum practical width
•
on a fork model lift if they are adjustable.
Pick loads up on both forks, not one.
Do not overload. Check load center and lift
•
weight capacities that are located on the data
plate.
Make sure work area is clear of all obstruc-
•
tions.
Check overhead clearance before lifting loads
•
or transporting.
Make sure oor lock pad is in rm contact
•
with oor before lifting load, lowering load
or using as a workstation.
Brace or block lift when sliding loads on or
•
off platform or forks.
B. DAILY OPERATIONS MAINTENANCE
CHECKS:
1. Battery
Check for corroded and loose terminals. A
•
white powder substance will be present if
there is any existing corrosion.
Check for loose battery tie-downs.
•
Visually inspect for any cracks or damage to
•
the casing.
2. Charger
Inspect wire connections.
•
Check power cord for nicks/damage.
•
Check charger for proper mounting.
•
3. Hydraulic System
Inspect pump and cylinder for oil leaks.
•
Check hydraulic oil level. Unscrew breather
•
plug on power unit with forks platform uid
will be ½ - ¾ of an inch from opening all the
way down.
Check hydraulic ttings and hoses
•
4. Frame Assembly
Check oor lock.
•
Check placement of safety screen.
•
Check chain roller assembly.
•
Check for any worn or damaged parts.
•
S E C T I O N 5
MAINTENANCE
A. INSTRUCTIONS:
Grease wheels and casters at least once a
•
month to maintain easy roll of lift.
Use only Hydraulic Oil (Conoco Super Hy-
•
draulic 32 or equivalent) in the hydraulic system. NEVER USE HYDRAULIC BRAKE
FLUID.
Do not overload your lift.
•
PRESTO OWNER’S MANUAL Page 5 WP & WPS Series Work Positioners
B. MONTHLY MAINTENANCE CHECKS:
reference.
1. Battery
Clean terminals.
•
Clean battery compartment area.
•
Check specic gravity -- fully charged battery
•
should read 1265.
Check uid level in all cells. Fill with
•
distilled water as necessary to bring uid to
within ¾” of the top.
2. Hydraulic System
Clean and inspect hydraulic cylinder.
•
Lubricate chains with a rust inhibitive chain
•
lubricant.
Check chain tension. The chains should be
•
tight enough so that they do not come off the
chain roller assembly. The tension should
be adjusted so that the chains bear equal
amounts of load weight.
3. Frame Assembly
Clean and lubricate all roller bearings and
•
cam followers.
Clean and inspect all welds.
•
Check wheels for wear and damage.
•
Inspect nameplate for legibility. Place the se-
•
rial and model number shown on the nameplate on the cover of the manual for future
S E C T I O N 6
SERVICE
IF LIFT DOES NOT RISE TO FULL HEIGHT
-- check for leaks or shortage of oil. Maintain the
proper oil level.
IF THE LIFT TENDS TO CREEP DOWNWARD
UNDER A LOAD -- a speck of dirt may be
obstructing the seating of the valve and allowing
leakage. To correct, follow these instructions:
Raise lift to full lifting height and then lower
•
it to lowest point of lift. It may be necessary
to do this ve or six times. In lowering the
lift, lower it in stages, that is, lower the lift
six inches to a foot at a time. This will dislodge the dirt and lift will operate properly.
PRESTO OWNER’S MANUAL Page 6 WP & WPS Series Work Positioners
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