
HP1
COMPACT POWER UNIT
Safety, Operation
and
Maintenance
Manual
Copyright © 1998
The Stanley Works
All rights reserved
OPS/MAINT USA & CE VERSION
Printed in U.S.A.
24280 06/97 Ver 3
SERIOUS INJURY OR DEASERIOUS INJURY OR DEA
SERIOUS INJURY OR DEA
SERIOUS INJURY OR DEASERIOUS INJURY OR DEA
COULD RESULCOULD RESUL
COULD RESUL
COULD RESULCOULD RESUL
IMPROPER REPIMPROPER REP
IMPROPER REP
IMPROPER REPIMPROPER REP
OF THIS TOOLOF THIS TOOL
OF THIS TOOL
OF THIS TOOLOF THIS TOOL
REPREP
AIRS AND / OR SERVICE TOAIRS AND / OR SERVICE TO
REP
AIRS AND / OR SERVICE TO
REPREP
AIRS AND / OR SERVICE TOAIRS AND / OR SERVICE TO
THIS TOOL MUST ONLTHIS TOOL MUST ONL
THIS TOOL MUST ONL
THIS TOOL MUST ONLTHIS TOOL MUST ONL
DONE BDONE B
DONE B
DONE BDONE B
CERTIFIED DEALERCERTIFIED DEALER
CERTIFIED DEALER
CERTIFIED DEALERCERTIFIED DEALER
T FROM THET FROM THE
T FROM THE
T FROM THET FROM THE
AIR OR SERVICEAIR OR SERVICE
AIR OR SERVICE
AIR OR SERVICEAIR OR SERVICE
..
.
..
Y AN AY AN A
UTHORIZED ANDUTHORIZED AND
Y AN A
UTHORIZED AND
Y AN AY AN A
UTHORIZED ANDUTHORIZED AND
..
.
..
Y BEY BE
Y BE
Y BEY BE
THTH
TH
THTH

INDEX
Index (this page) ...................................................................................... 1
Hydraulic Hose Requirements ................................................................. 6
Operation ......................................................................................... 7 - 10
Preparation for Use ........................................................................... 7
Hydraulic Connections ................................................................ 7 - 8
Startup ...................................................................................... 9 - 10
Cold Weather Startup ..................................................................... 10
Tool Operation .................................................................................10
Optional Equipment ............................................................................... 28
Parts Lists ...................................................................................... 19 - 20
Parts Drawings .............................................................................. 21 - 27
Engine Assembly (Fig. 1) ................................................................ 21
Frame Assemblies (Fig. 2) .............................................................. 22
Choke Cable Assembly (Fig. 3) ...................................................... 23
Actuator Assembly (Fig. 4) .............................................................. 23
Dash Panel & Valve Assembly (Fig. 5) ........................................... 24
Hydraulic Tank & Filter Assembly (Fig. 6) ....................................... 25
Hose & Fitting Connections (Fig. 7) ................................................26
Wiring Diagram (Fig. 8) .................................................................. 27
Routine Maintenance ............................................................................. 11
Engine ............................................................................................. 11
Hydraulic System ............................................................................ 11
Storage............................................................................................ 11
Safety Precautions ............................................................................ 2 - 5
Local Safety Regulation .................................................................... 4
Safety Stickers & Tags ......................................................................5
Sales & Service ......................................................................... Last Page
Service Instructions ....................................................................... 12 - 14
Specification & Capacities ..................................................................... 18
Testing & Troubleshooting ............................................................. 15 - 16
Troubleshooting Chart ........................................................................... 17
Warranty ................................................................................................ 29
SERIOUS INJURY OR DEASERIOUS INJURY OR DEA
SERIOUS INJURY OR DEA
SERIOUS INJURY OR DEASERIOUS INJURY OR DEA
IMPROPER REPIMPROPER REP
IMPROPER REP
IMPROPER REPIMPROPER REP
REPREP
AIRS AND / OR SERVICE TO THIS EQUIPMENT MUSTAIRS AND / OR SERVICE TO THIS EQUIPMENT MUST
REP
AIRS AND / OR SERVICE TO THIS EQUIPMENT MUST
REPREP
AIRS AND / OR SERVICE TO THIS EQUIPMENT MUSTAIRS AND / OR SERVICE TO THIS EQUIPMENT MUST
ONLONL
Y BE DONE BY BE DONE B
ONL
Y BE DONE B
ONLONL
Y BE DONE BY BE DONE B
DEALERDEALER
DEALER
DEALERDEALER
For the nearest authorized and certified dealer, call Stanley Hydraulic Tools at one of the locations listed on the back of this manual.
..
.
..
TH COULD RESULTH COULD RESUL
TH COULD RESUL
TH COULD RESULTH COULD RESUL
AIR OR SERVICE OF THIS EQUIPMENTAIR OR SERVICE OF THIS EQUIPMENT
AIR OR SERVICE OF THIS EQUIPMENT
AIR OR SERVICE OF THIS EQUIPMENTAIR OR SERVICE OF THIS EQUIPMENT
Y AN AY AN A
Y AN A
Y AN AY AN A
UTHORIZED AND CERTIFIEDUTHORIZED AND CERTIFIED
UTHORIZED AND CERTIFIED
UTHORIZED AND CERTIFIEDUTHORIZED AND CERTIFIED
T FROM THET FROM THE
T FROM THE
T FROM THET FROM THE
..
.
..
1

SAFETY PRECAUTIONS
Do not operate this equipment or associated
equipment until the following safety instructions have been thoroughly read and understood! Read this manual before installing,
operating or maintaining this equipment.
Tool operators and maintenance personnel must always comply with the safety precautions given in this
manual and on the stickers and tags attached to the equipment.
These safety precautions are given for your safety. Review them carefully before operating the tool and
before performing general maintenance or repairs.
Supervising personnel should develop additional precautions relating to the specific work area and local
safety regulations. If so, place the added precautions in the space provided on page 5.
In addition to this manual, read and understand safety and operating instructions in the Engine
Operation Manual furnished with the power unit.
GENERAL SAFETY PRECAUTIONS
The HP1 Compact Hydraulic Power Unit will provide safe and dependable service if operated in accordance with the instructions given in this manual. Read and understand this manual and any stickers and
tags attached to the Power Unit. Failure to do so could result in personal injury or equipment damage.
• Operators must start in a work area without bystanders. The operator must be familiar with all prohibited work areas such as excessive slopes and dangerous terrain conditions.
• Establish a training program for all operators to ensure safe operation.
• Do not operate the power unit unless thoroughly trained or under the supervision of an instructor.
• Always wear safety equipment such as goggles, ear and head protection, and safety shoes at all times
when operating the power unit and a hydraulic tool.
• Do not inspect or clean the power unit while the unit is running.
• Always use hoses and fittings rated at 2500 psi/172 bar with a 4 to 1 safety factor. Be sure all hose
connections are tight.
• Make sure all hoses are connected for correct flow direction to and from the tool being used.
• Do not inspect hoses and fittings for leaks by using bare hands. "Pin-hole" leaks can penetrate the
skin.
• Never operate the power unit in a closed space. Inhalation of engine exhaust can be fatal.
• Do not operate a damaged or improperly adjusted power unit.
• Never wear loose clothing that can get entangled in the working parts of the power unit.
• Keep all parts of your body away from the working parts of the power unit.
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• Always wear appropriate safety equipment such as goggles, ear protection, and toe guards. Certain
tools used in conjunction with the power unit may require other safety equipment such as breathing
filters.
• Keep clear of hot engine exhaust.
• Do not add fuel to the power unit while the power unit is running or is still hot.
• Do not operate the power unit if gasoline odor is present.
• Do not use flammable solvents around the power unit engine.
• Do not operate the power unit within 3.3 ft/1 m of buildings, obstructions, or flammable objects.
• Do not reverse grinding wheel rotation direction by changing fluid flow direction.
• Allow the engine to cool before storing the power unit in an enclosure.
• To avoid personal injury or equipment damage, all tool repair, maintenance and service must only be
performed by authorized and properly trained personnel.
SAFETY SYMBOLS
Safety symbols are used to emphasize all operator, maintenance and repair actions which, if not strictly
followed, could result in a life-threatening situation, bodily injury or damage to equipment.
DANGER
This safety symbol may appear
on the tool. It is used to alert
the operator of an action that
could place him/her or others in
a life threatening situation.
This safety symbol appears in
these instructions to identify
an action that could cause
bodily injury to the operator or
other personnel.
IMPORTANT
This safety symbol appears in
these instructions to identify an
action or condition that could
result in damage to the tool or
other equipment.
Always observe safety symbols. They are included for your safety and for the protection of the tool.
3