Stanley GPV18 V SERIES User manual

73418 1/2014 Ver. 1
USER MANUAL
Safety, Operation and Maintenance
GPV18
V SERIES
HYDRAULIC POWER UNIT

2 ► GPV18B02 User Manual
CERTIFICATE OF CONFORMITY

GPV18B02 User Manual ◄ 3
TABLE OF CONTENTS
WARNING
SERIOUS INJURY OR DEATH COULD RESULT FROM THE IMPROPER REPAIR OR
SERVICE OF THIS TOOL.
REPAIRS AND / OR SERVICE TO THIS TOOL MUST ONLY BE DONE BY AN
AUTHORIZED AND CERTIFIED DEALER.
IMPORTANT
To ll out a Product Warranty Recording form, and for information on your warranty,
visit Stanleyhydraulic.com and select the Warranty tab.
(NOTE: The warranty recording form must be submitted to validate the warranty).
SAFETY SYMBOLS...............................................................................................................................................4
SAFETY PRECAUTIONS ......................................................................................................................................5
TOOL STICKERS & TAGS.....................................................................................................................................6
HYDRAULIC HOSE TYPES...................................................................................................................................7
HOSE RECOMMENDATIONS ...............................................................................................................................8
HTMA REQUIREMENTS .......................................................................................................................................9
OPERATION ...................................................................................................................................................10-12
ROUTINE MAINTENANCE..................................................................................................................................13
TROUBLESHOOTING .........................................................................................................................................14
SPECIFICATIONS................................................................................................................................................15
SERVICING: This manual contains safety, operation, and routine maintenance instructions. Stanley Hydraulic Tools
recommends that servicing of hydraulic tools, other than routine maintenance, must be performed by an authorized
and certied dealer. Please read the following warning.
For the nearest authorized and certied dealer, call Stanley Hydraulic Tools at (503-659-5660) and ask for a Cus-
tomer Service Representative.

4 ► GPV18B02 User Manual
SAFETY SYMBOLS
Always observe safety symbols. They are included for your safety and for the protection of the tool.
LOCAL SAFETY REGULATIONS
Enter any local safety regulations here. Keep these instructions in an area accessible to the operator and mainte-
nance personnel.
Safety symbols and signal words, as shown below, are used to emphasize all operator, maintenance and repair ac-
tions which, if not strictly followed, could result in a life-threatening situation, bodily injury or damage to equipment.
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible
injury or death.
DANGER
This safety alert and signal word indicate an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING
This safety alert and signal word indicate a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
CAUTION
This safety alert and signal word indicate a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
CAUTION
This signal word indicates a potentially hazardous situation which, if not avoid-
ed, may result in property damage.
NOTICE
This signal word indicates a situation which, if not avoided, will result in damage
to the equipment.
IMPORTANT
This signal word indicates a situation which, if not avoided, may result in dam-
age to the equipment.

GPV18B02 User Manual ◄ 5
SAFETY PRECAUTIONS
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 per-
forming general maintenance or repairs.
Supervising personnel should develop additional precau-
tions relating to the specic work area and local safety
regulations. If so, place the added precautions in the space
provided on page 4.
In addition to this manual, read and understand safety and
operating instructions in the Engine Operation Manual fur-
nished with the power unit.
The 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.
• Operator must start in a work area without bystand-
ers. 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 en-
sure 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,
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 it is
running. Accidental engagement of the unit can cause
serious injury.
• Always use hoses and ttings rated at 2500 psi/172
bar with a 4 to 1 safety factor. Be sure all hose connec-
tions are tight.
• Be sure all hoses are connected for correct ow
direction to and from the tool being used.
• Do not inspect hoses and ttings 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, 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.
• 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 ammable solvents around the power unit
engine.
• Do not operate the power unit within 3.3 ft/1 m of
buildings, obstructions or ammable objects.
• Do not reverse tool rotation direction by changing
uid ow direction.
• Allow power unit engine to cool before storing in an
enclosed space.
• Always keep critical tool markings, such as labels
and warning stickers legible.
• To avoid personal injury or equipment damage, all
tool repair, maintenance and service must only be per-
formed by authorized and properly trained personnel.
Warning: Use of this tool on certain materials during
demolition could generate dust potentially containing
a variety of hazardous substances such as asbestos,
silica or lead. Inhalation of dust containing
these or other hazardous substances could result
in serious injury, cancer or death. Protect yourself
and those around you. Research and understand
the materials you are cutting. Follow correct safety
procedures and comply with all applicable national,
state or provisional health and safety regulations
relating to them, including, if appropriate arranging
for the safe disposal of the materials by a qualied
person.

6 ► GPV18B02 User Manual
Choke
Safety Information
Hour Meter
Fuel Sticker
Serial No.
Location
TOOL STICKERS & TAGS
Guaranteed Sound
Power Level Decal
GPV18B02 Only
The above tag is attached to the tool before it is
shipped, read carefully before operating. If tag is
damaged, please replace it and keep clean.
Re-attach tag to unit when not in use.

GPV18B02 User Manual ◄ 7
HOSE TYPES
The rated working pressure of the hydraulic hose must be equal to or higher than the relief valve setting on the hy-
draulic system. There are three types of hydraulic hose that meet this requirement and are authorized for use with
Stanley Hydraulic Tools. They are:
Certied non-conductive — constructed of thermoplastic or synthetic rubber inner tube, synthetic ber braid
reinforcement, and weather resistant thermoplastic or synthetic rubber cover. Hose labeled certied non-
conductive is the only hose authorized for use near electrical conductors.
Wire-braided (conductive) — constructed of synthetic rubber inner tube, single or double wire braid reinforce-
ment, and weather resistant synthetic rubber cover. This hose is conductive and must never be used near
electrical conductors.
Fabric-braided (not certied or labeled non-conductive) — constructed of thermoplastic or synthetic rubber in-
ner tube, synthetic ber braid reinforcement, and weather resistant thermoplastic or synthetic rubber cover. This
hose is not certied non-conductive and must never be used near electrical conductors.
HOSE SAFETY TAGS
To help ensure your safety, the following DANGER tags are attached to all hose purchased from Stanley Hydraulic
Tools. DO NOT REMOVE THESE TAGS.
If the information on a tag is illegible because of wear or damage, replace the tag immediately. A new tag may be
obtained from your Stanley Distributor.
THE TAG SHOWN BELOW IS ATTACHED TO “CERTIFIED NON-CONDUCTIVE” HOSE
THE TAG SHOWN BELOW IS ATTACHED TO “CONDUCTIVE” HOSE.
(Shown smaller than actual size)
SIDE 1
DANGER
1. FAILURE TO USE HYDRAULIC HOSE LABELED AND CERTIFIED AS NON-CONDUCTIVE
WHEN USING HYDRAULIC TOOLS ON OR NEAR ELECTRIC LINES MAY RESULT IN
DEATH OR SERIOUS INJURY.
FOR PROPER AND SAFE OPERATION MAKE SURE THAT YOU HAVE BEEN PROP-
ERLY TRAINED IN CORRECT PROCEDURES REQUIRED FOR WORK ON OR AROUND
ELECTRIC LINES.
2. BEFORE USING HYDRAULIC HOSE LABELED AND CERTIFIED AS NON-CONDUCTIVE
ON OR NEAR ELECTRIC LINES. WIPE THE ENTIRE LENGTH OF THE HOSE AND FIT-
TING WITH A CLEAN DRY ABSORBENT CLOTH TO REMOVE DIRT AND MOISTURE AND
TEST HOSE FOR MAXIMUM ALLOWABLE CURRENT LEAKAGE IN ACCORDANCE WITH
SAFETY DEPARTMENT INSTRUCTIONS.
SEE OTHER SIDE
SIDE 2
DO NOT REMOVE THIS TAG
3. DO NOT EXCEED HOSE WORKING PRESSURE OR ABUSE HOSE. IMPROPER USE
OR HANDLING OF HOSE COULD RESULT IN BURST OR OTHER HOSE FAILURE.
KEEP HOSE AS FAR AWAY AS POSSIBLE FROM BODY AND DO NOT PERMIT DIRECT
CONTACT DURING USE. CONTACT AT THE BURST CAN CAUSE BODILY INJECTION
AND SEVERE PERSONAL INJURY.
4. HANDLE AND ROUTE HOSE CAREFULLY TO AVOID KINKING, ABRASION, CUTTING, OR
CONTACT WITH HIGH TEMPERATURE SURFACES. DO NOT USE IF KINKED. DO NOT
USE HOSE TO PULL OR LIFT TOOLS, POWER UNITS, ETC.
5. CHECK ENTIRE HOSE FOR CUTS CRACKS LEAKS ABRASIONS, BULGES, OR DAM-
AGE TO COUPLINGS IF ANY OF THESE CONDITIONS EXIST, REPLACE THE HOSE
IMMEDIATELY. NEVER USE TAPE OR ANY DEVICE TO ATTEMPT TO MEND THE HOSE.
6. AFTER EACH USE STORE IN A CLEAN DRY AREA.
SEE OTHER SIDE
DANGER
DO NOT REMOVE THIS TAG
DANGER
(Shown smaller than actual size)
SIDE 2
5. CHECK ENTIRE HOSE FOR CUTS CRACKS LEAKS ABRASIONS, BULGES, OR DAMAGE TO
COUPLINGS IF ANY OF THESE CONDITIONS EXIST, REPLACE THE HOSE IMMEDIATELY.
NEVER USE TAPE OR ANY DEVICE TO ATTEMPT TO MEND THE HOSE.
6. AFTER EACH USE STORE IN A CLEAN DRY AREA.
DANGER
DO NOT REMOVE THIS TAG
DANGER
SIDE 1
1. DO NOT USE THIS HYDRAULIC HOSE ON OR NEAR ELECTRIC LINES. THIS HOSE IS
NOT LABELED OR CERTIFIED AS NON-CONDUCTIVE. USING THIS HOSE ON OR NEAR
ELECTRICAL LINES MAY RESULT IN DEATH OR SERIOUS INJURY.
2. FOR PROPER AND SAFE OPERATION MAKE SURE THAT YOU HAVE BEEN PROPERLY
TRAINED IN CORRECT PROCEDURES REQUIRED FOR WORK ON OR AROUND ELEC-
TRIC LINES.
3. DO NOT EXCEED HOSE WORKING PRESSURE OR ABUSE HOSE. IMPROPER USE OR
HANDLING OF HOSE COULD RESULT IN BURST OR OTHER HOSE FAILURE. KEEP HOSE
AS FAR AWAY AS POSSIBLE FROM BODY AND DO NOT PERMIT DIRECT CONTACT
DURING USE. CONTACT AT THE BURST CAN CAUSE BODILY INJECTION AND SEVERE
PERSONAL INJURY.
4. HANDLE AND ROUTE HOSE CAREFULLY TO AVOID KINKING, CUTTING, OR CONTACT
WITH HIGH TEMPERATURE SURFACES. DO NOT USE IF KINKED. DO NOT USE HOSE TO
PULL OR LIFT TOOLS, POWER UNITS, ETC.
DO NOT REMOVE THIS TAG
DANGER
SEE OTHER SIDE SEE OTHER SIDE

8 ► GPV18B02 User Manual
HOSE RECOMMENDATIONS
Oil Flow Hose Lengths Inside Diameter USE
(Press/Return)
Min. Working Pressure
GPM LPM FEET METERS INCH MM PSI BAR
Certied Non-Conductive Hose - Fiber Braid - for Utility Bucket Trucks
4-9 15-34 up to 10 up to 3 3/8 10 Both 2250 155
Conductive Hose - Wire Braid or Fiber Braid -DO NOT USE NEAR ELECTRICAL CONDUCTORS
4-6 15-23 up to 25 up to 7.5 3/8 10 Both 2500 175 4-6 15-23 26-100 7.5-30 1/2 13 Both 2500 175
5-10.5 19-40 up to 50 up to 15 1/2 13 Both 2500 175 5-10.5 19-40 51-100 15-30 5/8 16 Both 2500 175 5-10.5 19-40 100-300 30-90 5/8 16 Pressure 2500 175
3/4 19 Return 2500 175
10-13 38-49 up to 50 up to 15 5/8 16 Both 2500 175 10-13 38-49 51-100 15-30 5/8 16 Pressure 2500 175
3/4 19 Return 2500 175
10-13 38-49 100-200 30-60 3/4 19 Pressure 2500 175
1 25.4 Return 2500 175
13-16 49-60 up to 25 up to 8
5/8 16 Pressure 2500 175 3/4 19 Return 2500 175
13-16 49-60 26-100 8-30
3/4 19 Pressure 2500 175
1 25.4 Return 2500 175
Figure 1. Typical Hose Connections
Tool to Hydraulic Circuit Hose Recommendations The chart to the right shows recommended minimum hose diameters for various hose lengths based on gallons per minute (gpm)/ liters per minute (lpm). These recommenda- tions are intended to keep return line pressure (back pressure) to a minimum acceptable lev- el to ensure maximum tool performance. This chart is intended to be used for hydraulic tool applications only based on Stanley Hy- draulic Tools tool operating requirements and should not be used for any other applications. All hydraulic hose must have at least a rated minimum working pressure equal to the maxi- mum hydraulic system relief valve setting. All hydraulic hose must meet or exceed specications as set forth by SAE J517.
PRESSURE
RETURN
<<< FLOW
FLOW >>>

GPV18B02 User Manual ◄ 9
HTMA / EHTMA REQUIREMENTS
Flow Range
Nominal Operating Pressure
(at the power supply outlet)
System relief valve setting
(at the power supply outlet)
Maximum back pressure
(at tool end of the return hose)
Measured at a max. uid viscosity of:
(at min. operating temperature)
Temperature: Sufcient heat rejection
capacity to limit max. uid temperature to:
(at max. expected ambient temperature)
Min. cooling capacity at a temperature
difference of between ambient and uid
temps
NOTE:
Do not operate the tool at oil temperatures above 140° F (60° C). Operation at higher temperatures can cause operator
discomfort at the tool.
Filter
Min. full-ow ltration
Sized for ow of at least:
(For cold temp. startup and max.
dirt-holding capacity)
Hydraulic uid Petroleum based
(premium grade, anti-wear, non-conductive)
Viscosity (at min. and max. operating temps)
NOTE:
When choosing hydraulic uid, the expected oil temperature extremes that will be experienced in service determine the
most suitable temperature viscosity characteristics. Hydraulic uids with a viscosity index over 140 will meet the requirements
over a wide range of operating temperatures.
*SSU = Saybolt Seconds Universal
4-6 gpm 7-9 gpm 9-10.5 gpm 11-13 gpm
(15-23 lpm) (26-34 lpm) (34-40 lpm) (42-49 lpm)
1500 psi 1500 psi 1500 psi 1500 psi
(103 bar) (103 bar) (103 bar) (103 bar)
2100-2250 psi 2100-2250 psi 2200-2300 psi 2100-2250 psi
(145-155 bar) (145-155 bar) (152-159 bar) (145-155 bar)
250 psi 250 psi 250 psi 250 psi
(17 bar) (17 bar) (17 bar) (17 bar)
400 ssu* 400 ssu* 400 ssu* 400 ssu*
(82 centistokes) (82 centistokes) (82 centistokes) (82 centistokes)
140° F 140° F 140° F 140° F
(60° C) (60° C) (60° C) (60° C)
3 hp 5 hp 6 hp 7 hp
(2.24 kW) (3.73 kW) (5.22 kW) (4.47 kW)
40° F 40° F 40° F 40° F
(22° C) (22° C) (22° C) (22° C)
25 microns 25 microns 25 microns 25 microns
30 gpm 30 gpm 30 gpm 30 gpm
(114 lpm) (114 lpm) (114 lpm) (114 lpm)
100-400 ssu* 100-400 ssu* 100-400 ssu* 100-400 ssu*
(20-82 centistokes)
HTMA
HYDRAULIC SYSTEM REQUIREMENTS
NOTE: These are general hydraulic system requirements. See tool specication page for tool specic requirements
TOOL TYPE
HTMA / EHTMA REQUIREMENTS
TYPE I TYPE II TYPE III
TYPE RR
BCD
3.5-4.3 gpm 4.7-5.8 gpm 7.1-8.7 gpm 9.5-11.6 gpm 11.8-14.5 gpm
(13.5-16.5 lpm) (18-22 lpm) (27-33 lpm) (36-44 lpm) (45-55 lpm)
1870 psi 1500 psi 1500 psi 1500 psi 1500 psi
(129 bar) (103 bar) (103 bar) (103 bar) (103 bar)
EHTMA
HYDRAULIC SYSTEM
REQUIREMENTS
CLASSIFICATION
Flow Range
Nominal Operating Pressure
(at the power supply outlet)
System relief valve setting
(at the power supply outlet) 2495 psi 2000 psi 2000 psi 2000 psi 2000 psi
(172 bar) (138 bar) (138 bar) (138 bar) (138 bar)

10 ► GPV18B02 User Manual
OPERATION
PREPARATION FOR USE
Do not operate the power unit until you have read the
engine operating and maintenance instructions manual
furnished with the unit.
1. ENGINE CRANKCASE OIL LEVEL
Always check the oil level before starting the engine. Make
sure the oil level is at the FULL MARK on the dipstick. Do
not overll. Use detergent oil classied "For Service SE,
SF, SG" as specied in the engine operating and mainte-
nance manual. See engine manual for oil viscosity grade.
2. ENGINE FUEL LEVEL
Check the fuel level. If low, ll with un-leaded gasoline with
a minimum of 85 octane.
3. HYDRAULIC FLUID
Check the sight pipe or hydraulic uid level in the hydrau-
lic uid reservoir as follows: Proper uid level is indicated
when the center section of the sight pipe is dark. If the cen-
ter section of the sight pipe is not dark, add hydraulic uid.
Use uids meeting the following specications.
Viscosity (Fluid Thickness)
U.S. METRIC
50°F 450 SSU Maximum 10°C 95 C.S.
100°F 130-200 SSU 38°C 27-42 C.S.
140°F 85 SSU Minimum 60°C 16.5 C.S. Min
Pour Point -10°F/-23°C Minimum (for cold startup)
Viscosity Index (ASTM D-2220) 140 Minimum
Demulsibility (ASTM D-1401) 30 Minutes Maximum
Flash Point (ASTM D-92) 340°F/171°C Minimum
Rust Inhibition (ASTM D-665 A & B) Pass
Oxidation (ASTM D-943) 1000 Hours Minimum
Pump Wear Test (ASTM D-2882) 60 mg Maximum
The following uids work well over a wide temperature
range, allow moisture to settle out and resist biological
growth that may occur in cool operating hydraulic circuits.
These uids are recommended by Stanley Hydraulic Tools.
Other uids that meet or exceed the specications of these
uids may also be used.
Chevron AW-MV-32
Exxon "Univis" J-26
Mobil D.T.E. 13
Gulf "Harmony" AW-HVI-150-32
Shell "Tellus" T-32
Texaco "Rando" HD-AZ
Union "Unax" AW-WR-32
Terresolve EnviroLogic 132
4. HYDRAULIC CONNECTIONS
The recommended hose length is 8 m/25 ft with a 12.7
mm/1/2 inch inside diameter. The hoses must have a work-
ing pressure rating of at least 175 bar/2500 psi. Each hose
end must have male thread ends compatible with H.T.M.A.
(HYDRAULIC TOOL MANUFACTURERS ASSOCIATION)
quick disconnect ttings.
Figure 1. Control Panel
Facing the control panel, the left-hand male quick discon-
nect tting is the PRESSURE FLUID OUT tting. The right-
hand female quick disconnect tting is the RETURN FLUID
IN tting (See Figure 1).
Shut the engine off before attempting to add fuel to the
fuel tank. Do not remove the fuel cap while the engine is
running. Do not add fuel to the engine while the engine
is hot. Do not ll the fuel tank to a point of overowing.
DANGER

GPV18B02 User Manual ◄ 11
OPERATION
QUICK DISCONNECT COUPLERS
H.T.M.A. approved quick disconnect couplings are installed
to hydraulic hoses so that the direction of oil ow is always
from the male to the female quick disconnect as shown in
gure 2. Quick disconnect couplings and hose ttings are
selected so that additional ttings such as reducer or adapt-
er ttings are not required.
If adapter ttings are used, they must be approved steel
hydraulic ttings meeting a minimum operating pressure
rating of 2500 psi/172 bar. Do not use galvanized pipe t-
tings or black pipe ttings.
Use thread tape or pipe joint compound when installing
quick disconnect couplings to hose or tool ttings. Follow
the instructions furnished with the selected thread sealant.
DO NOT OVERTIGHTEN THE FITTINGS.
5. BATTERY
The supplied 12 Volt DC battery has been partially dry
charged. Before using, it must rst be lled with battery
electrolyte at a specic density of 1.240 to 1.260. Fill each
cell to its upper level indicator and then charge at a 2 Amp
rate for at least 12 to 15 hours. After charging, check the
electrolyte level and ll as required.
Also, make sure the battery cables are rmly xed and
charging circuit functions are operated properly.
NOTICE
Do not charge the battery with a standard automotive
battery charger. This type of charger produces a
charging amperage higher than 2 amps. Charging
the battery at higher than 2 amps will damage the
battery.
NOTICE
If the engine runs out of gas or dies during operation
and the ignition switch is left in the ON or RUN
position, this could drain the battery. Make sure the
ignition switch is returned to the OFF position.
H.T.M.A. 1/2 INCH MALE
QUICK DISCONNECT
COUPLER
CONTROL PANEL
RETURN
PRESSURE
H.T.M.A. 1/2 INCH FE-
MALE QUICK DISCON-
NECT COUPLER
1/2 INCH I.D. HOSE, 25 FT
LONG WITH 2500 PSI/
172 BAR RATING AND
4 TO 1 SAFETY FACTOR
1/2 INCH MALE PIPE HOSE END
1/2 INCH MALE PIPE HOSE END
ADAPTER, 3/8 INCH MALE PIPE x
-8 SAE O-RING
H.T.M.A. 1/2 INCH MALE
QUICK DISCONNECT
COUPLER
H.T.M.A. 1/2 INCH FE-
MALE QUICK DISCON-
NECT COUPLER
TOOL
PRESSURE RETURN
RETURN
PRESSURE
Figure 2
CONTROL PANEL

12 ► GPV18B02 User Manual
OPERATION
CONTROLS
The GPV18 maximum pressure is 175 bar/2500 psi with a
ow adjustment from 20 Lpm/5 gpm to 30 Lpm/8 gpm by
rotating the ow control switch.
Figure 3. Control Panel
One hydraulic tool can be connected to the tool circuit. The
circuit is activated by rst selecting 5 or 8 gpm with the ow
control switch, then rotating the output control switch to the
“ON” position.
STARTUP
Assure the output control switch is in the “OFF” position
before startup. Pull out on the “Choke” control lever and
turn the start switch to the “Start” position, after the engine
starts let go of the key and the start switch will remain in the
“Run” position, allow the engine to warm up for 3-5 minutes
until it runs smoothly with the choke pushed back in. Then
connect the hose, turn the ow control switch into 20 Lpm/5
gpm or 30 Lpm/8 gpm (depending on your tool),and turn
the output control switch into “NO’ position and the tool can
be operated.
SHUTDOWN
Place the output control switch in the “OFF” position and
turn the ow control switch to “Idle” position. Then turn the
startup switch to “Stop” or shutdown position.
COLD WEATHER STARTUP
Hydraulic uids are thicker in cold weather, therefore, it
is recommended that the engine be run at low idle long
enough to bring the uid temperature up to a minimum of
50°F/10°C or until the top of the hydraulic lter feels warm.
If the tools and tool hoses are cold, it is recommended to
allow hydraulic uid to circulate through the tool hoses until
warm before using the tool.

GPV18B02 User Manual ◄ 13
ROUTINE MAINTENANCE
ENGINE MAINTENANCE
Follow the maintenance schedule and general mainte-
nance instructions in the engine maintenance and opera-
tion manual furnished with the power unit.
•Service foam air pre-cleaner every 25 hours of operation.
•Service air paper cartridge every 100 hours of operation.
•Replace in-line fuel lter every 100-300 hours or sooner if
required.
•Replace spark plugs every 100 hours of operation.
•Change engine oil after rst 5 hours of operation, then
after every 50 hours of operation. If engine has been op-
erating under heavy load or in high ambient temperature,
change the oil every 25 hours of operation.
•Change oil lter when engine oil is changed.
•Check oil level daily.
•Remove dirt and debris from engine with a cloth or brush
daily. Do not use water spray.
•Clean air cooling system every 100 hours of operation.
HYDRAULIC SYSTEM MAINTENANCE
• Check hydraulic uid level daily. Add uid per specica-
tions in this manual. (See "HYDRAULIC FLUID" under
the section titled "OPERATING INSTRUCTIONS". KEEP
HYDRAULIC FLUID CLEAN.
• Remove condensed moisture from the hydraulic
uid by pumping the hydraulic uid into a 5 gal/20 l con-
tainer through the pressure hose. Make sure the engine is
at idle when performing this procedure. When the hydraulic
reservoir is empty turn the engine off immediately.
• Allow the uid to sit long enough for the water to settle to
the bottom of the container. Slowly pour the uid back into
the hydraulic tank, avoiding the water at the bottom of the
container.
• Each day, check hydraulic lines and ttings for leaks,
kinks, etc. Do not use your hand to perform this check.
• Change the hydraulic lter element per :Engine Mainte-
nance on this page. Change more often if cold, moist or
dusty conditions exist.
• Check oil cooler for debris. Remove debris with air pres-
sure.
STORAGE
• Clean the unit thoroughly before storage. Do not use
water pressure.
• Always store the unit in a clean and dry facility.
• If the unit will be stored for a prolonged period (over 30
days), add a fuel additive to the fuel tank to prevent the fuel
from gumming. Run engine for a short period to circulate
the additive.
• Replace crankcase oil with new oil.
• Remove spark plugs and pour approximately 1 ounce (30
ml) of engine oil into each cylinder. Replace spark plugs
and crank the engine slowly to distribute the oil. Check hy-
draulic reservoir for water. If water is found, change the oil
and circulate it through the tool hose and tool. (see hydrau-
lic system maintenance section ).Disconnect tool hoses.
Install new hydraulic uid lter if dirty.

14 ► GPV18B02 User Manual
TROUBLESHOOTONG
ENGINE WILL NOT START. START SWITCH IN THE OFF POSITION. TURN START SWITCH TO “START” WHEN
STARTING.
BATTERY NOT CONNECTED. ATTACH BATTERY CABLES, CHECK WIRES.
WEAK BATTERY. TEST BATTERY, CHARGE OR REPLACE.
NO FUEL. ADD FUEL.
FUEL FILTER PLUGGED. REPLACE FUEL FILTER.
DEFECTIVE SPARK PLUGS. REMOVE PLUGS, CHECK GAP, CLEAN OR
REPLACE.
FLUID BLOWING OUT OF FLUID
RESERVOIR VENT. HYDRAULIC TANK OVERFILLED. CORRECT THE FLUID LEVEL.
PUMP SUCTION LEAK. CHECK SUCTION CONNECTIONS. TIGHTEN IF
NECESSARY.
HYDRAULIC TOOL WON'T OPERATE FLOW CONTROL SWITCH NOT CHECK THAT THE FLOW CONTROL SWITCH
SWITCHED TO 5 OR 8 GPM. IS SET TO 5 OR 8 GPM.
INCORRECT HOSE CONNECTION MAKE SURE THE TOOL HOSE CIRCUIT GOES
TO TOOL. FROM LEFT (PRESSURE) FITTING TO TOOL AND
BACK TO THE RIGHT FITTING (RETURN). FLUID
ALWAYS FLOWS FROM THE MALE TO FEMALE
FITTINGS.
QUICK DISCONNECT FITTINGS DETACH FROM HOSE, CONNECT SET
DEFECTIVE. TOGETHER AND CHECK FOR FREE FLOW.
HYDRAULIC FLUID LEVEL LOW. CHECK FOR CORRECT FLUID LEVEL. FILL USING
THE RECOMMENDED FLUID.
PUMP COUPLING DEFECTIVE. WITH THE ENGINE NOT RUNNING.
CHECK THE COUPLING BETWEEN THE PUMP
AND ENGINE THAT IT IS ENGAGED AND IS
NOT DAMAGED. CAUTION: KEEP HANDS CLEAR
OF ROTATING OBJECTS.
OUTPUT CONTROL SWITCH NOT ON. TURN OUTPUT CONTROL SWITCH ON.
RELIEF VALVE STUCK OPEN. ADJUST OR REPLACE VALVE.
SUCTION HOSE KINKED. MAKE SURE SUCTION HOSE FROM FLUID
RESERVOIR TO PUMP INLET HAS A SMOOTH
CURVE.
.
TOOL IS DEFECTIVE. REFER TO TOOL MANUAL.
PROBLEM CAUSE REMEDY

GPV18B02 User Manual ◄ 15
SPECIFICATIONS
Engine: ....................................................................................................................................................18 hp Briggs
Capacity................................ One 20 lpm/5 gpm Circuit or One 30 lpm/8 gpm Circuit at 70~140 bar/1000~2000 psi
Length:..............................................................................................................................................90 cm / 35.4 inch
Width: ................................................................................................................................................. 59 cm / 23 inch
Height: .................................................................................................................................................74 cm / 29 inch
Weight ............................................................................................................................................120 kg / 264.5 lbs
Hydraulic Reservor Capacity:................................................................................................................... 11 ltr / 3 gal
Coupling ....................................................................................................................HTMA male and female coupler
HTMA/EHTMA Category ........................................................................................................................ Type 1 and 2

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