Southworth PT-33-M Specifications
Maintenance Manual
& Operator Instructions
Pallet Lift Truck
PT-33-M & PT-33-E
Model # _________________________________
Serial # _________________________________
SOUTHWORTH PRODUCTS CORP
P.O. Box 1380 • Portland, ME 04104-1380
Telephone: (207) 878-0700 or (800) 743-1000
Fax: (207) 797-4734 October 2014
2 PALLET LIFT TRUCK MANUAL
SOUTHWORTH
PALLET LIFT TRUCK MANUAL 3
Contents
INTRODUCTION ................................................................................................. 4
RESPONSIBILITY OF OWNERS AND USERS................................................... 5
SAFETY ALERT SYMBOLS AND SIGNAL WORDS............................................ 6
SAFETY .............................................................................................................. 7
How to operate the Pallet Lift Truck......................................................... 8
Avoid overloads. Avoid offset loads ......................................................... 9
Operator precautions........................................................................ 10-11
THE BATTERY ................................................................................................. 12
Preparing to charge the battery ........................................................... 12
Precautions for grounding .................................................................... 12
Battery charging precautions and warnings ........................................ 13
Battery maintenance.............................................................................. 13
ELECTRICAL ..................................................................................................... 14
Fuse replacement ................................................................................. 14
Wiring connections ................................................................................ 15
LUBRICATION AND HYDRAULIC OIL.............................................................. 16
Oil Change............................................................................................. 16
CLEANING ..................................................................................................... 17
TROUBLESHOOTING ....................................................................................... 17
ORDERING REPLACEMENT PARTS .............................................................. 18
2 YEAR WARRANTY .................................................................... Back of Manual
List of Figures
Fig. 1 PT-33-M Chassis components......................................................... 19
Fig. 2 PT-33-M Cylinder & Handle components ........................................ 21
Fig. 3 PT-33-E Hydraulic pump components ............................................. 23
Fig. 4 Electrical diagram ............................................................................ 23
Fig. 5 PT-33-E Electrical Diagram, Control Current................................... 24
Fig. 6 PT-33-E Chassis components ......................................................... 25
Fig. 7 PT-33-E Cylinder.............................................................................. 27
Fig. 8 PT-33-E Pump chassis .................................................................... 28
Fig. 9 PT-33-E Relay.................................................................................. 29
Fig. 10 PT-33-E Pump ................................................................................. 29
Fig. 11 PT-33-E Handle ............................................................................... 30
Fig. 12. PT-33-E Parking brake..................................................................... 31
Fig. 13 PT-33-E Top Stop............................................................................. 32
4 PALLET LIFT TRUCK MANUAL
Among the subjects dealt with in this owner‘s
manual are:
• Proper application
• Physical limitations of the product
• Risks with improper use
Please read this Owner’s Manual carefully!
Introduction
This manual contains instructions on the safe and proper installation, use, and maintenance
of the Southworth Pallet Lift Truck. Be sure that this manual is available to the people who
install, use, or service the unit. Be sure that all personnel read this manual before they
install, use, or service the unit.
Pallet Lift Truck units may be used in a wide variety of industrial settings. The instructions
in this manual are not necessarily all-inclusive, as Southworth cannot anticipate all conceiv-
able or unique situations. In the interest of safety, please read this whole manual carefully.
Please understand the material in this manual before you install, use, or service the Pallet
Lift Truck. If you have any questions about any of the instructions in this manual, please
contact Southworth Products Corp.
Southworth’s product warranty is shown on page 20 of this manual. This instruction manual
is not intended to be or to create any other warranty, express or implied, including any im-
plied warranty of merchantability or tness for a particular purpose, all of which are hereby
expressly excluded. As set forth more specically in the product warranty, Southworth’s
obligation under that warranty is limited to the repair or replacement of defective compo-
nents, which shall be the buyer’s sole remedy, and Southworth shall not be liable for any
loss, injury, or damage to persons or property, nor for any direct, indirect, or consequential
damage of any kind resulting from the Pallet Lift Truck. The Pallet Lift Truck is manufactured
in accordance with ANSI Standard B56.10 and PREN 1757-1.
SOUTHWORTH
PALLET LIFT TRUCK MANUAL 5
Responsibility of Owners and Users
Inspection and Maintenance
The device shall be inspected and maintained in proper working order in accordance with
Southworth’s owner’s manual.
Removal from Service
Any device not in safe operating condition such as, but not limited to, excessive leakage,
missing rollers, pins, or fasteners, any bent or cracked structural members, cut or frayed
electric, hydraulic, or pneumatic lines, damaged or malfunctioning controls or safety de-
vices, etc. shall be removed from service until it is repaired to the original manufacturer’s
standards.
Deection
It is the responsibility of the user/purchaser to advise the manufacturer where deection
may be critical to the application.
Repairs
All repairs shall be made by qualied personnel in conformance with Southworth’s instruc-
tions.
Operators
Only trained personnel and authorized personnel shall be permitted to operate the equip-
ment.
Before Operation
Before using the device, the operator shall have:
• Read and/or had explained, and understood, the manufacturer’s operating instruc-
tions and safety rules.
• Inspected the device for proper operation and condition. Any suspect item shall be
carefully examined and a determination made by a qualied person as to whether
it constitutes a hazard. All items not in conformance with Southworth’s specication
shall be corrected before further use of the equipment.
During Operation
The device shall only be used in accordance with this owner’s manual.
• Do not overload.
• Ensure that all safety devices are operational and in place.
Modications or Alterations
Modications or alterations to any Southworth industrial positioning equipment shall be
made only with written permission from Southworth.
6 PALLET LIFT TRUCK MANUAL
SAFETY ALERT SYMBOLS AND SIGNAL WORDS
The safety of all persons operating, maintaining, repairing, or in the vicinity of this equipment is of
paramount concern. This is a powerful machine with moving parts, and is capable of causing personal
injury if proper precautions are not taken. Therefore, throughout this manual, certain hazards have been
identied which may occur in the use of the machine, and there are appropriate instructions or precautions
which should be taken to avoid these hazards. In some cases, there are consequences which may occur
if instructions or precautions are not followed. Below are the symbols and signal words along with their
denitions referenced from ANSI Z535.4 - Product Safety Signs and Labels.
Safety Alert Symbols
These are the safety alert symbols. They are used to alert you to potential physical injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury or
death.
For use with DANGER signal word
(Red Background)
For use with WARNING signal word
(Orange Background)
For use with CAUTION signal word
(Yellow Background)
Signal Words
The meaning of different signal words as dened by ANSI Standard Z535.4 indicates the
relative seriousness of the hazardous situation.
DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION, used with the safety alert symbol, indicates a
hazardous situation which, if not avoided, could result in
minor or moderate injury.
NOTICE is used to address practices not related to per-
sonal injury.
(Red Background)
(Orange Background)
(Yellow Background)
(Blue Background)
SAFETY
INSTRUCTIONS
SAFETY INSTRUCTIONS (or equivalent) signs indicate
safety-related instructions or procedures.
(Green Background)
SOUTHWORTH
PALLET LIFT TRUCK MANUAL 7
Safety
The safety of all persons installing, using, servicing, or working near the Pallet Lift
Truck is of paramount concern to Southworth. The Pallet Lift Truck unit is a power-
ful machine with moving parts, and is capable of causing personal injury if proper
precautions are not taken.
Therefore, throughout this manual, Southworth has identied certain hazards which
may occur in the use of the Pallet Lift Truck, and provided appropriate instructions or
precautions which should be taken to avoid these hazards. In some cases, Southworth
has also pointed out the consequences which may occur if Southworth’s instructions
or precautions are not followed. Southworth uses the following system of identifying
the severity of the hazards associated with its products:
DANGER – Immediate hazard which will result in severe personal injury or death.
WARNING – Hazard or unsafe practice which could result in severe personal
injury or death.
CAUTION – Hazard or unsafe practice which could result in minor personal injury
or property damage.
Please read and follow this instruction manual, including all safety instructions and precau-
tions, carefully and completely.
8 PALLET LIFT TRUCK MANUAL
How to operate the Pallet Lift Truck
For proper operation,
stand behind the handle.
Push/pull - raise/lower
PALLET LIFT TRUCK APPLICATION
FOR SKID OR
CONTAINER HANDLING.
SOUTHWORTH
PALLET LIFT TRUCK MANUAL 9
Optimum Safety
Avoid Overloads
The maximum load must not be exceeded. Remember, the Pallet Lift Truck is de-
signed for evenly distributed load - goods on pallet, etc. If the forks are point-loaded on one
side, there is risk of bending.
Avoid Offset Loads
The load must be distributed evenly on pallets or similar. The maximum distance
between the center of gravity of the load and the face of the mast is illustrated in Figure X.
If the distance is exceeded the Pallet Lift truck might tip forward. Goods on pallets, etc. must
be properly secured so that they cannot fall off during transport, when the truck is lifted, or
when the truck must remain lifted for a time.
10 PALLET LIFT TRUCK MANUAL
Stability Means Safety
The support pins (B) and thrust shoes (A) together stabilize the truck when raised. It must not
be possible to drive the truck when the fork height is more than 16 inches. The support legs are ec-
centric so that it is possible to adjust them as they wear.
Operator Precautions
This manual suits for next models
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