Page 1
GTR20
HYDRAULIC
POWER UNIT
USER MANUAL
Safety, Operation and Maintenance
© 2014 Stanley Black & Decker, Inc.
New Britain, CT 06053
U.S.A.
65114 3/2015 Ver. 12
Page 2
NOTES
2 ► GTR20 User Manual
Page 3
WARNING
TABLE OF CONTENTS
SAFETY SYMBOLS ..................................................................................................................................................4
SAFETY PRECAUTIONS .......................................................................................................................................... 5
TOOL STICKERS ......................................................................................................................................................6
HYDRAULIC HOSE REQUIREMENTS .....................................................................................................................7
HOSE RECOMMENDATIONS .................................................................................................................................. 8
FIGURE 1. TYPICAL HOSE CONNECTIONS .......................................................................................................8
EHTMA/HTMA REQUIREMENTS ............................................................................................................................9
OPERATION ............................................................................................................................................................10
ROUTINE MAINTENANCE .....................................................................................................................................14
PROGRAMMABLE CONTROLLER ........................................................................................................................15
FAULT CODES ........................................................................................................................................................16
TESTING & TROUBLESHOOTING ........................................................................................................................17
TROUBLESHOOTING ............................................................................................................................................18
SPECIFICATIONS ................................................................................................................................................... 19
ACCESSORIES.......................................................................................................................................................20
GTR20 BRIGGS ILLUSTRATION ........................................................................................................................... 21
GTR20 BRIGGS PARTS LIST ................................................................................................................................. 22
GTR20 HONDA ILLUSTRATION .............................................................................................................................23
GTR20 HONDA PARTS LIST ..................................................................................................................................24
FRAME PARTS .......................................................................................................................................................25
FUEL TANK & CAP .................................................................................................................................................26
HOSES, FITTINGS & CLAMPS ..............................................................................................................................27
MAIN WIRING HARNESS ....................................................................................................................................... 28
DUAL CIRCUIT WIRE HARNESS ...........................................................................................................................29
IMPORTANT
To ll out a Product Warranty Validation form, and for information on your warranty,
visit Stanleyhydraulics.com and select the Company tab, Warranty.
(NOTE: The warranty Validation record must be submitted to validate the warranty).
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 au-
thorized and certied dealer. Please read the following 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.
For the nearest authorized and certied dealer, call Stanley Hydraulic Tools at the number listed on the back of this
manual and ask for a Customer Service Representative.
GTR20 User Manual ◄ 3
Page 4
DANGER
WARNING
CAUTION
CAUTION
NOTICE
IMPORTANT
SAFETY SYMBOLS
Safety symbols and signal words, as shown below, 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.
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.
This safety alert and signal word indicate an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
This safety alert and signal word indicate a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
This safety alert and signal word indicate a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
This signal word indicates a potentially hazardous situation which, if not avoided, may result in property damage.
This signal word indicates a situation which, if not avoided, will result in damage
to the equipment.
This signal word indicates a situation which, if not avoided, may result in damage to the equipment.
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 maintenance personnel.
4 ► GTR20 User Manual
Page 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 performing
general maintenance or repairs.
Supervising personnel should develop additional precautions relating to the specic 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 furnished
with the power unit.
This 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 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, 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 connections 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 performed by autho-
rized and properly trained personnel.
GTR20 User Manual ◄ 5GTR20 User Manual ◄ 5
Page 6
59126
Power Unit Dash Decal
59125
Dual Circuit Decal
TOOL STICKERS
59126 DASH RR DECAL
59125 DUAL CIRCUIT CECAL
6 ► GTR20 User Manual
Page 7
HYDRAULIC HOSE REQUIREMENTS
The rated working pressure of the hydraulic hose must be equal to or higher than the relief valve setting on the hydraulic system. There are three types of hydraulic hose that meet this requirement and are authorized for use with
Stanley Hydraulic Tools. They are:
Certied non-conductive — constructed of thermoplastic or synthetic rubber inner tube, synthetic ber braid
reinforcement, and weather resistant thermoplastic or synthetic rubber cover. Hose labeled certied 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 reinforcement, and weather resistant synthetic rubber cover. This hose is conductive and must never be used near
electrical conductors.
Fabric-braided (not certied or labeled non-conductive) — constructed of thermoplastic or synthetic rubber inner tube, synthetic ber braid reinforcement, and weather resistant thermoplastic or synthetic rubber cover. This
hose is not certied 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
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 PROPERLY 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 FITTING 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.
DO NOT REMOVE THIS TAG
SEE OTHER SIDE
SIDE 1
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.
(Shown smaller than actual size)
DANGER
DANGER
SEE OTHER SIDE
SIDE 2
THE TAG SHOWN BELOW IS ATTACHED TO “CONDUCTIVE” HOSE.
DANGER
DANGER
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 ELECTRIC 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
SEE OTHER SIDE
SIDE 1
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.
(Shown smaller than actual size)
DANGER
SEE OTHER SIDE
SIDE 2
DO NOT REMOVE THIS TAG
DO NOT REMOVE THIS TAG
GTR20 User Manual ◄ 7GTR20 User Manual ◄ 7
Page 8
Min. Working Pressure
USE
(Press/Return)
HOSE RECOMMENDATIONS
Certied Non-Conductive Hose - Fiber Braid - for Utility Bucket Trucks
Oil Flow Hose Lengths Inside Diameter
GPM LPM FEET METERS INCH MM PSI BAR
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
5/8 16 Pressure 2500 175
3/4 19 Return 2500 175
5-10.5 19-40 100-300 30-90
10-13 38-49 up to 50 up to 15 5/8 16 Both 2500 175
5/8 16 Pressure 2500 175
3/4 19 Return 2500 175
10-13 38-49 51-100 15-30
3/4 19 Pressure 2500 175
1 25.4 Return 2500 175
10-13 38-49 100-200 30-60
5/8 16 Pressure 2500 175
3/4 19 Return 2500 175
13-16 49-60 up to 25 up to 8
3/4 19 Pressure 2500 175
1 25.4 Return 2500 175
13-16 49-60 26-100 8-30
PRESSURE
<<< FLOW
RETURN
FLOW >>>
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.
8 ► GTR20 User Manual
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
specications as set forth by SAE J517.
Page 9
HTMA / EHTMA REQUIREMENTS
HTMA / EHTMA REQUIREMENTS
HTMA
HYDRAULIC SYSTEM 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: Sufcient 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)
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)
TYPE I TYPE II
TOOL TYPE
TYPE RR
TYPE III
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
EHTMA
100-400 ssu* 100-400 ssu* 100-400 ssu* 100-400 ssu*
(20-82 centistokes)
CLASSIFICATION
HYDRAULIC SYSTEM
REQUIREMENTS
Flow Range
Nominal Operating Pressure
(at the power supply outlet)
System relief valve setting
(at the power supply outlet)
NOTE: These are general hydraulic system requirements. See tool specication page for tool specic requirements
B
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)
2495 psi 2000 psi 2000 psi 2000 psi 2000 psi
(172 bar) (138 bar) (138 bar) (138 bar) (138 bar)
C
D
GTR20 User Manual ◄ 9GTR20 User Manual ◄ 9
Page 10
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 dip-
stick. Do not overll. Use detergent oil classied "For
Service SE, SF, SG" as specied in the engine operat-
ing and maintenance manual. See engine manual for oil
viscosity grade.
2. SPARK PLUG
On power units equipped with Briggs & Stratton Engines,
ONLY Champion RC12YC or equivalent can be used
For power units equipped with Honda Engines, ONLY
Denso J16CR-U or equivalent can be used.
Incorrect type spark plugs can produce radio frequency
interference that will corrupt and damage the controller.
Failure to use the correct spark plug could result in a
warranty that will not be considered.
3. ENGINE FUEL LEVEL
Check the fuel level. If low, ll with un-leaded gasoline
with a minimum of 85 octane.
4. HYDRAULIC FLUID
RECOMMENDED HYDRAULIC OILS
Below is a list of recommended oils by brand.
Brand Biodegradable Description
CITGO No Hydurance AW32
AMS Oil No HVH 32
Exxon Mobil No Univis HVI26*
Exxon Mobil No DTE 10 Excel
Shell No S2 V 32
Chevron No Rando HDZ 32
Conoco Phillips No Unax AW-WR-32
Clarion (CITGO) Yes Green Bio 32
Exxon Mobil Yes EAL 224H
Chevron Yes Clarity AW32
Terresolve Yes Envirologic 132
Shell Yes Naturelle HF-E-32
*Recommended for extreme cold temperatures
5. HYDRAULIC CONNECTIONS
The recommended hose length is 25 ft/8 m with a 1/2
inch/12.7 mm inside diameter. The hoses must have
a working pressure rating of at least 2500 psi/175 bar.
Each hose end must have male thread ends compatible
with H.T.M.A. (HYDRAULIC TOOL MANUFACTURERS
ASSOCIATION) quick disconnect ttings (NPT type
threads). (See Figure 2.)
10 ► GTR20 User Manual
Figure 1. Control Panel
Facing the control panel, the 2 left male quick discon-
nect ttings are the PRESSURE FLUID OUT ttings.
The 2 right female quick disconnect ttings are the RETURN FLUID IN ttings.
QUICK DISCONNECT COUPLERS
H.T.M.A. approved quick disconnect couplings are in-
stalled to hydraulic hoses so that the direction of oil ow
is always
Page 11
NOTICE
NOTICE
OPERATION
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
adapter 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
ttings 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.
6. BATTERY
The supplied 12 Volt DC battery is a non-spillable, maintenance-free battery and is fully charged.
Make sure the battery cables are tight and charging circuit functions are operating properly.
VALVE BLOCK
PRESSURE
PRESSURE
Adapter, 1/2 inch Male Pipe x
-10 SAE O-Ring (P/N 07882)
HTMA, 1/2 inch Male Quick
Disconnect Coupler (P/N
24061, Coupler Body or
P/N 03974, Coupler Set)
HTMA, 1/2 inch Female Quick
Disconnect Coupler (P/N
24060, Coupler Body or
P/N 03974, Coupler Set)
1/2 inch. ID Hose, 25 ft to 50
ft long.
(25 ft: P/N 04972 or P/N
05009, Dual Hydraulic Hose)
(50 ft: P/N 04978 or P/N
05008, Dual Hydraulic Hose)
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.
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.
PRESSURE
RETURN
Figure 2. Hydraulic Connections
1/2 inch Male Pipe Hose End
HTMA, 1/2 inch Male Quick
Disconnect Coupler (P/N
24061, Coupler Body or
P/N 03974, Coupler Set)
HTMA, 1/2 inch Female Quick
Disconnect Coupler (P/N
24060, Coupler Body or
P/N 03974, Coupler Set)
Adapter, 3/8 inch Male Pipe x
-8 SAE O-Ring (P/N 00936)
PRESSURE
RETURN
GTR20 User Manual ◄ 11
Page 12
IMPORTANT
OPERATION
CONTROLS
This unit is equipped with an advanced proportional engine control system. It provides a means of controlling
engine speed by adjusting the fuel control lever with an
actuator. The Power Unit provides two 5 gpm/19 lpm up
to 2000 psi/140 bar circuits or one 10 gpm/37.8 lpm up
to 2000 psi/140 bar circuit.
Throttle Control Switch
Ignition Switch
Figure 3. Panel Control Valve
Two 5 gpm hydraulic tools can be connected to the tool
circuit or one 10 gpm tool. The circuit is activated by
turning one or both ow selector switches to 5 or both
switches to 10 gpm. If both are at 10 gpm, 10 gpm can
be had by connecting to either coupler set.
Flow Selector tool
Circuit 1 Switch
Flow Selector tool
Circuit 2 Switch
the operator has selected with the ow selector switch.
When a tool is not being used the engine will not return
to idle until either the ow selector switch is turned to
the off position or the throttle control switch is turned to
auto-on.
Note: It may be necessary to reset the Controller.
At times it may be neccessary to reset the controller.
This could happen if a fault occurs in the controller. For
example, excessive engine speed. If a fault does occur
the power unit will return to an idle and the operator will
have no control of the unit. To reset the controller, simply
turn off the power unit and restart it.
USING THE 12 VOLT DC OUTLET
A 12 VDC outlet is on specic models. The DC outlet is
ON at all times.
The accessories (if left on) that are plugged
into this outlet could drain the battery.
THROTTLE CONTROL
The throttle control permits the operator to select one
of 2 operating modes after the engine has warmed up.
When starting the engine, make sure the ow selector
switch is in the OFF position. The throttle control switch
can be set in either the AUTO-IDLE-ON or AUTO-IDLEOFF positions.
AUTO-ON
When the throttle control switch is in the "AUTO-ON"
position, the oil ow is regulated automatically when the
trigger on the tool activated. When the tool is not being
used the engine will return to idle automatically, after a
10 second delay.
This setting will produce one or two 5 gpm/19 lpm circuits or one 10 gpm/37.8 lpm circuit depending on which
postion the operator has selected with the ow selector
switch.
AUTO-OFF
When the throttle control switch is in the "AUTO-OFF"
position, the engine speed is held to maintain 5 gpm/19
lpm or 10 gpm/37.8 lpm depending on which position
STARTUP
Before starting the engine make sure the ow selector
switches are in the OFF position.
Note: The power unit will not start if the ow selec-
tor switches are not in the "OFF" position.
Pull choke knob out and move the Throttle Control
Switch to the auto-idle-off or the auto-idle-on position,
whichever mode of operation the operator prefers. En-
sure the ow selector switch is in the OFF position.
Turn the Ignition Switch to the START position. After the
engine starts, release the switch.
Gradually push in the choke knob as the engine begins
to idle smoothly.
Allow the engine to warm up.
Connect hoses and the tool as desrcribed on pages 7
and 8.
12 ► GTR20 User Manual
Page 13
OPERATION
FOR 5 GPM OPERATION
For 5 gpm operation, select mode of operation with the
Throttle Control switch, either auto-idle-on or the auto-
idle-off position. Move the ow selector switch to the 5
gpm position.
Note:
If operating both 5 gpm circuits move both ow selector switches to the 5 gpm position. Both 5 gpm
circuits are independent from each other and can be
operated on its own.
When nished operating the tool, move one or both ow
selector switches to the OFF position.
FOR 10 GPM OPERATION
SHUTDOWN
1. Ensure the ow selector switches are in the OFF position (center position).
2. Unless already at idle the power unit should return
to idle. This may take a few seconds for the unit to react
due to a built-in program delay.
3. Allow the engine to idle for approximately one minute
and move the Ignition Switch to the OFF position.
For 10 gpm operation, select mode of operation with the
Throttle Control Switch, either auto-idle-on or the auto-
idle-off position. Move both ow selector switches to the
10 gpm position.
When nished operating the tool, move both ow selector switches to the OFF position.
Note:
Either set of couplers can be used for the 10 gpm circuit,
but DO NOT use two separate tools when in the 10 gpm
operation mode.
COLD WEATHER STARTUP
1. Use the procedures described under "STARTUP"
and then follow the procedure below.
2. 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.
3. If the tools and tool hoses are cold, it is recom-
mended to allow hydraulic uid to circulate through the
tool hoses until warm before using the tool.
GTR20 User Manual ◄ 13
Page 14
ROUTINE MAINTENANCE
ENGINE MAINTENANCE
Follow the maintenance schedule and general maintenance instructions in the engine maintenance and operation manual furnished with the power unit.
SPARK PLUG
On power units equipped with Briggs & Stratton Engines,
ONLY Champion RC12YC or equivalent can be used.
For power units equipped with Honda Engines, ONLY
Denso J16CR-U or equivalent can be used.
Incorrect type spark plugs can produce radio frequency
interference that will corrupt and damage the controller.
Failure to use the correct spark plug could result in a
warranty that will not be considered.
HYDRAULIC SYSTEM MAINTENANCE
• Check hydraulic uid level daily. Add uid per specications in this manual. (See "HYDRAULIC FLUID" under the section titled "OPERATING INSTRUCTIONS".
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 hydraulic reservoir for water. If water is found,
change the oil and circulate it through the tool hose and
tool. (See "HYDRAULIC SYSTEM MAINTENANCE"
earlier in this section).
• 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 every 200 hours
of operation. Change more often if cold, moist or dusty
conditions exist.
• Check oil cooler for debris. Remove debris with air
pressure.
• Disconnect tool hoses.
14 ► GTR20 User Manual
Page 15
PROGRAMMABLE CONTROLLER
The Stanley programmable controller is an electronic
engine governor that provides a means of controlling
and limiting engine speed by adjusting the fuel control
lever with a proportional actuator.
The controller is factory preset and has no manual adjustments.
A ashing LED indicates
the fault condition
TROUBLESHOOTING GUIDELINES
Please follow the checklist below to troubleshoot your
Stanley controller.
tion.
a. If actuator does not move it is defective. (Replace).
b. If actuator moves throttle to wide-open position, the
module is defective or there is a wiring problem. (Replace).
FAULT CODES
The Stanley controller is capable of identifying certain
fault conditions and alerting the user to them. A ashing LED indicates the fault conditions. The current fault
code list is shown on the following page. Please note
the following:
1. When power is rst applied to the controller, the LED
will ash just once for one second to indicate that the
LED is working.
2. If there are multiple faults, the LED will ash them all in
sequence. Count the ash codes to determine the fault
conditions or connect the Calibration Tool to observe the
fault conditions. (Use the “Display Faults” option under
the Monitor Menu.)
1. Check battery voltage for stability and correct value.
The LED will turn on for one second when the controller
4500 is rst powered up.
2. Check the actuator linkage for binding and backlash.
CHECKING PERFORMANCE CONTROL™
(ELECTRONIC GOVERNOR-STATIC
CHECK)
To determine whether a governor problem is being
caused by the actuator or the control module, perform
the following static check exactly in order shown.
A pair of jumper wires and a known good 12-volt battery
is required.
1. Disconnect red and green wires from the control module to actuator.
2. Attach jumper wires from battery to RED and GREEN
wires to actuator.
a. Attach 12 volt + (positive) to RED wire.
b. Attach 12 volt – (negative) to GREEN wire.
3. Actuator should move throttle lever to wide open posi-
3. If there are no faults, the LED will ash once at
reset and from then on indicate the detection of engine
speed. A continuous ON LED indicates that a valid
engine speed is being sensed.
4. The controller will attempt to shut down for some
faults and will not permit starting after reset with faults
1, 5 and 8.
GTR20 User Manual ◄ 15
Page 16
FAULT CODES
FLASH ENGINE
CODE FAULT SHUTDOWN CORRECTIVE ACTION
1 APECS unit not calibrated yes Calibrate APECS unit.
2 Engine speed excessive yes Check parameter settings. Over speed criteria may be
too sensitive.
Check for electrical noise entering controller.
Check wiring and connections.
Check case ground.
Make sure linkage moves freely, without backlash.
Check tip of speed sensor.
3 Engine speed unusually low yes Check parameter settings.
Check linkage and the actuator travel.
Ensure that load is not greater than engine capacity.
4 Engine shutdown due to engine yes Check parameter settings.
protection input Check what may have triggered the protection input.
5 Factory settings lost yes If calibration le is available, download the le and cycle
power again.
If controller still does not work or if no calibration le is
available, consult factory.
6 External pot out-of-range no Verify that pot is wired correctly.
Recalibrate external pot.
7 Accelerator position / idle no Verify that signals are working and synchronized.
switch conict
8 Controller unit failed yes Electrical noise may be entering the controller.
Check wiring, shielding and connections to controller.
Cycle power to engine.
If controller still does not work, consult factory.
9 Limiting excessive no Check actuator for short to ground or low resistance.
actuator current Check parameter settings.
Check linkage and actuator travel.
Ensure that load is not greater than engine capacity.
10 Engine speed input no (Active only in Auto crank mode).
signal missing Check speed sensor wiring.
Check starter motor.
11 Auto crank unable to no Check fuel.
start engine
12 Auxiliary output is shorted no Check the lamp or relay hooked to the output. If fault is
still present, consult factory.
13 Auxiliary output #2 is shorted no Check the lamp or relay hooked to the output. If fault is
still present, consult factory.
14 Actuator disconnected or no Check actuator wiring and actuator resistance.
open circuit Resistance should be less than 10 ohms.
16 ► GTR20 User Manual
Page 17
TESTING & TROUBLESHOOTING
GENERAL
Tests and adjustments should be performed periodically
to ensure the power unit is operating at maximum ef-
ciency. Stanley Circuit Tester (part number 04182) is
recommended. This tester can be used to isolate problems in both the engine and hydraulic system prior to
any power unit disassembly.
TESTING THE HYDRAULIC CIRCUIT
The following tests can be performed to ensure that the
hydraulic pump is supplying the correct ow and pressure and that the system relief valve is operating properly.
During these tests, make sure the engine is warm and
operating smoothly. If test results are not as specied,
refer to the troubleshooting table in this section for possible causes.
TESTING THE 5 GPM OR 10 GPM CIRCUIT
To test the circuit, proceed as follows:
1. Set the ow selector switches to the OFF (center) position.
2. Set the throttle control switch to AUTO-OFF position.
3. Connect the Stanley Circuit Tester across two hose
ends (where the tool would normally be connected).
4. Fully open the tester restrictor valve (counterclockwise).
5. Start the engine and allow it to run until warm.
6. Switch the ow selector switch to 5 or 10 gpm depending on which ow you are testing.
7. With the engine at the programed speed, the test ow
gauge should read 4-6 gpm/15-23 lpm or 9-11 gpm/34-
41.6 lpm.
8. Slowly turn the restrictor valve clockwise while watch-
ing the pressure gauge. The ow rate should stay at 4-6
gpm/15-23 lpm or 9-11 gpm/34-41.6 lpm as the pressure
gauge reaches 2100-2200 psi/148-155 bar.
9. At 2100-2200 psi/148-155 bar, the relief valve should begin to open. The pressure at which the relief valve just be-
gins to open is commonly referred to as the "cracking pressure". At the "cracking pressure," the ow rate should start
to drop because the relief valve is allowing uid to bypass to
the hydraulic reservoir. The "cracking pressure" is preset at
the factory and if it is not within the above range, the relief
valve must be re-set as follows:
a. The relief valve is located on the right side of the unit just
behind the dash panel. It putrudes out from the manifold assembly. Use a open end or box end wrench to loosen the nut
on the relief valve.
b. Use an Allen wrench to adjust the relief valve. Turn clockwise to raise the pressure and counterclockwise to reduce
the pressure.
c. Tighten the nut and retest.
GTR20 User Manual ◄ 17
Page 18
TROUBLESHOOTING
PROBLEM CAUSE REMEDY
Engine will not start. Flow selector switch not in the Make sure both ow selector switches
OFF position. are in the OFF position when starting.
Battery not connected. Attach battery cables, check wires.
Weak battery. Test battery, charge or replace.
No fuel. Add Fuel.
Fuel lter plugged. Replace fuel lter.
Defective spark plugs. Remove plugs, check gap, clean or
replace.
Fluid blowing out of uid
reservoir vent. Hydraulic tank overlled. Correct the uid level.
Pump suction leak. Check suction connections. Tighten if
necessary.
Hydraulic tool won't operate. Flow selector switch not switched Check that the ow selector switch
ON. is set to 5 or 10 gpm.
Incorrect hose connection to Make sure the tool hose circuit goes
tool. from left (pressure) tting to tool
and back to the right tting (return).
Fluid always ows from the male to
female ttings.
Quick disconnect ttings Detach from hose, connect set
defective. together and check for free ow.
Hydraulic uid level low. Check for correct uid level. Fill
using the recommended uid.
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.
Relief valve stuck open. Adjust or replace valve.
Suction hose kinked. Make sure suction hose from uid
reservoir to pump inlet has a smooth
curve.
Solenoid not working. Check solenoid operation and electrical
connections.
Tool is defective. Refer to tool manual.
18 ► GTR20 User Manual
Page 19
SPECIFICATIONS
Engine: ............................................................................................................................ 18 hp Briggs / 20 hp Honda
Capacity (Flow)...............................................................Two 5 gpm/19 lpm Circuits or One 10 gpm/37.8 lpm Circuit
Length:................................................................................................................................................ 36 in. / 91.4 cm
Width: ................................................................................................................................................. 23 in: / 58.4 cm
Height: .............................................................................................................................................. 29.5 in. / 74.9cm
Weight (Wet): Dual Circuit Briggs ...................................................................................................334 lbs / 151.5 kg
Weight (Wet): Dual Circuit Honda ..................................................................................................352 lbs / 159.6 kg
Fuel Tank Capacity: ........................................................................................................................... 5.5 gal. / 20.8 ltr
Estimated Gas Consumption Per Hour ................................................................................................... 1.3 gal / 4 ltr
Hydraulic Reservor Capacity: .................................................................................................................. 3 gal. / 11 ltr
Nominal Operating Pressure .......................................................................................................... 1500 psi / 103 bar
Relief Valve "crack" setting ............................................................................................................. 2100 psi / 145 bar
Full relief setting ............................................................................................................................. 2500 psi / 172 bar
EHTMA Category........................................................................."C" (19 lpm @ 103 bar) or "E" (37.8 lpm @ 103 bar)
HTMA Category............”Type 1” (4-6 gpm /15-23 lpm @ 103 bar) or “Type RR” (9-10.5 gpm / 34-40 lpm @ 103 bar)
EMISSIONS
POWER UNITS,TRACHORSE & GAS/FUEL DRIVEN EQUIPMENT:
A1. Federal Emission Component Compliance 40CFR part 1060.120 Stanley warrants all fuel system emission com-
ponents for 2 years from the date of original purchase provided there has been no abuse, neglect, modi cations, or
improper maintenance.
Components covered. The emission-related warranty covers all components whose failure would increase the evaporative emissions. Your emissionrelated warranty does not cover components whose failure would not increase evaporative emissions. Coverage under this warranty extends only to the following parts; fuel tank, fuel cap, fuel hose and vapor
hose from the fuel tank to the engine and any connectors that are apart of the fuel system.
The equipment is designed, built, and equipped so it conforms at the time of sale to the ultimate purchaser and each
subsequent purchaser and is in compliance with 40 C.F.R. 1060.120 standards. The equipment is free from defects in
materials and workmanship that may keep it from meeting these requirements.
GTR20 User Manual ◄ 19
Page 20
ACCESSORIES
ACCESSORIES
Coupler Male, 3/8 -8 SAE, Parker......................................................................................................................58857
Coupler Female, 3/8 -8 SAE, Parker..................................................................................................................58856
Coupler Male, 3/8 -8 SAE, Aeroquip..................................................................................................................66785
Coupler Female, 3/8 -8 SAE, Aeroquip..............................................................................................................66784
Hose Assy, 50 ft., with couplers (2 wire braid RR) .............................................................................................58448
Hose Assy, 50 ft., with couplers .........................................................................................................................31848
Hose Assy, 25 ft., with couplers .........................................................................................................................31972
Hose Assy, 25 ft., with couplers (2 wire braid RR) .............................................................................................58451
Wheel Kit (Converts a Skid Mount unit into a wheeled unit)..............................................................................73393
FILTERS
MODEL
GTR20 BRIGGS
GTR20 HONDA
ENGINE
OIL FILTER AIR FILTER FUEL FILTER
FOAM AIR
FILTER
HYDRAULIC OIL
18384 18382 19947 18383 40408
40458 40459 40460 40462 40408
FILTER
20 ► GTR20 User Manual
Page 21
GTR20 BRIGGS ILLUSTRATION
GTR20 User Manual ◄ 21
Page 22
GTR20 BRIGGS PARTS LIST
ITEM P/N QTY DESCRIPTION
1 36150 1 Mufer
2 36151 1 Heat Shield
3 36152 2 Screw, Hex Washer
4 59007 1 Briggs Engine (Includes Items
60 thru 70)
5 56656 1 Coupling
6 07819 1 Square Key
7 07860 2 Capscrew
8 31765 1 Pressure Switch
9 12787 4 Flange Nut
10 24287 1 Clamp
11 59076 1 Bushing
12 20990 1 Key
13 65108 1 Blower Hub
14 0 0111 3 Capscrew
15 40080 1 Filter Assy
16 43687 1 Capscrew
17 64937 1 Grip Plate
18 51292 1 Std Thread Union
19 17821 4 Button Head HS
20 60945 2 Washer
21 15476 2 Capscrew
22 59080 1 Front Grille
23 59091 1 Cooler
24 07860 2 Capscrew, 3/8
25 59077 1 Hydraulic Tank
26 62296 2 Weather Strip
27 65107 1 Blower Wheel-Brazed
28 59074 4 Hex Flange Bolt
29 72312 1 Engine Controller
30 40433 9 Hex Flange Bolt
31 58897 1 Frame Base Weldment
32 58918 2 Wheel & Tire
33 58917 1 Axle
34 27695 1 Pump, Dual
35 71794 1 Fuel Cap
36 60920 1 Grommet
37 73050 1 Fuel Tank
38 04303 1 Battery
39 60921 1 Battery Cover
ITEM P/N QTY DESCRIPTION
40 15476 1 Capscrew
41 65068 1 Hex Flange Bolt
42 21714 2 Handle Bumper
43 58942 3 Hex Flange Bolt
44 01459 4 Lockwasher
45 58975 2 Foot
46 18893 4 Flang Nut
47 58976 4 Hex Flange Bolt
48 31240 2 Retaining Ring
49 21318 2 Washer, 3/4
50 59083 1 Blower Housing
51 56655 1 Pump Mount
52 60919 1 Fuel Elbow
53 62385 2 Stud
54 371503 1 Nut
55 62324 1 Heat Shield
56 62292 2 Hex Washer Head Screws
57 64991 1 Screw
58 56709 1 Cable Clamp
59 65042 1 Rectier Wire
60 69374 1 Throttle Lever
61 59074 2 Hex Flange Bolt
62 68675 1 Angle Bracket Weldment
63 68560 1 Rottary Actuator
64 68676 1 Actuator Bracket
66 69401 1 Wire Assembly
67 69281 4 Hex Skt Head Capscrew 6-32
69 69282 1 Hex Skt Head Capscrew 8-32
70 62181 1 Link Retainer
71 72451 3 Spring Hose Clamp
72 72571 1 Fuel Vapor Hose
73 ----- 1 Supplied By Eng Manufacturer
75 72317 2 Spring Hose Clamp
76 62289 1 Hose (Fuel)
22 ► GTR20 User Manual
Page 23
GTR20 HONDA ENGINE ASSEMBLY
A wheel kit is available to convert a Skid Mount
unit to a wheeled unit P/N-73393.
GTR20 User Manual ◄ 23
Page 24
GTR20 HONDA PARTS LIST
ITEM P/N QTY DESCRIPTION
1 38577 1 Mufer Kit
2 62292 2 Hex Washer Head Screw
3 --- - No Item
4 36918 1 Honda Engine
5 56656 1 Coupling
6 07819 1 Square Key
7 07860 2 Capscrew, 3/8-16 x 1-1/4
8 31765 1 Pressure Switch
9 12787 4 Flange Nut, 5/16
10 24287 1 Clamp
11 59076 1 Bushing
12 20990 1 Key
13 65108 1 Blower Hub
14 00111 3 Capscrew, 10-24
15 40080 1 Filter Assy
16 43687 1 Capscrew, M8 x 16
17 64937 1 Grip Plate
18 51292 1 Std Thread Union
19 17821 4 Button Head HS, 1/4 x 20
20 60945 2 Washer, 1/4 in. ID
21 15476 2 Capscrew, 1/2 -20 UNC
22 59080 1 Front Grille
23 59091 1 Cooler
24 07860 2 Capscrew, 3/8-16
25 59077 1 Hydraulic Tank
66791 1 Hydraulic Tank (For Sight Gage)
26 62296 2 Weather Strip
27 65107 1 Blower Wheel-Brazed
28 59074 4 Hex Flange Bolt, 1/4 -20
29 65482 1 Engine Controller
30 65058 1 Hex Flange Bolt
31 58897 1 Frame Base Weldment
32 58918 2 Wheel & Tire
33 58917 1 Axle
34 27695 1 Pump, Dual
35 71794 1 Fuel Cap
36 60920 1 Grommet
37 73050 1 Fuel Tank
38 04303 1 Battery
39 60921 1 Battery Cover
40 15476 1 Capscrew, 1/4-20
41 60945 1 Washer, 1/4
42 40433 9 Hex Flange Bolt, 5/16
43 58942 4 Hex Flange Bolt, 5/16
44 01459 4 Lockwasher, 3/8
45 58975 2 Foot
46 18893 4 Flang Nut, 3/8-16
ITEM P/N QTY DESCRIPTION
47 58976 4 Hex Flange Bolt, 3/8-16
48 31240 2 Retaining Ring
49 21318 2 Washer, 3/4
50 59083 1 Blower Housing
51 56655 1 Pump Mount
52 60919 1 Fuel Elbow
53 62385 2 Stud
54 371503 1 Nut
55 60972 2 Hex Flange Bolt, M6 x 15
56 49174 1 Screw, M8 x 30
57 62185 1 Spring
58 62179 1 Choke Pivot Weldment
59 60945 1 Washer, 1/4 inch ID
60 60962 1 HSHCS 1/4-20 x 1/2 inch
61 62181 2 Link Retainer
62 62184 1 Choke Link
63 62183 1 Spring
64 62180 1 Rotary Actuator
65 64990 1 Spring, Torsion
66 65072 1 Link Retainer
67 62182 1 Throttle Link
68 ----- -- No Item
69 64991 1 Screw, M8 x 12
70 56709 1 Cable Clamp
71 62177 1 Actuator Weldment
72 60970 2 Hex Flange Bolt, M5 x 10
73 60971 2 Flange Nut, 8-32
74 60948 1 Stub Shaft
75 60949 3 Washer
76 60950 3 HSHCS, M8 x 55
77 60953 2 Hex Flange Bolt, 1/4-20 x 1 inch
78 60957 1 Rectier Bracket
79 --- 1 Rectier (Part of Engine Assy)
80 59095 2 Flange Nut, 1/4-20
81 37294 1 Wire Harness
82 --- - No Item
83 62404 1 Mag Kill Wire
84 62405 1 Fuel Shutoff Wire
85 37222 1 Exhaust Shield
86 00899 3 HHCS 1/4-20 UNC x .500
87 62325 1 Heat Shield
88 21714 2 Handle Bumper
89 66788 1 Sight Gage
90 72848 2 Spring Hose Clamp
91 72846 1 Fuel Vapor Hose
93 72317 2 Spring Hose Clamp
94 72242 1 Fuel Hose
24 ► GTR20 User Manual
Page 25
Receptacle Assy 64942
12-VOLT PLUG WIRING HARNESS
TO STARTER
SOLENOID
RED
BLACK
GROUND
25 AMP FUSE
12-VOLT RECEPTACLE
FRAME PARTS
*
ITEM P/N QTY DESCRIPTION
1 370502 7 Capscrew
2 03906 7 Nylock Nut, 5/16 in. -18 UNC
3 62267 1 Handle, Rear Lift
4 58857 2 Coupler, Male, 3/8 in., -8 SAE Parker
66785 2 Coupler, Male, 3/8 in., -8 SAE Aeroquip
5 58856 2 Coupler, Female, 3/8 in., -8 SAE Parker
66784 2 Coupler, Female, 3/8 in., -8 SAE Aeroquip
6 60962 2 Capscrew, 1/4 in. -20
7 59084 1 Manifold Dual Circuit
59085 1 Manifold Assy, Dual Circuit (Incl. 22-29, 31,
8 59126 1 Dash Decal
9 59074 6 Hex Flange Bolt, 1/4 in. -20
10 59125 1 Decal, Dual Circuit
11 67899 1 Knob (part of item 13)
12 60955 1 2-Way Switch
13 67899 1 Rotary Switch
14 60956 2 3-Way Switch
15 60946 1 Hour Meter
16 62269 1 Frame Weldment
33, 34)
28
29
27
23
31
12 VOLT ACCESSORY NOT EQUIPPED
ON ALL MODELS.
AVAILABLE AS AN ADD-ON
* IF ADDING 12 VOLT ACCESSORY,
CUT AWAY LABEL AND PUNCH
THROUGH DASH PANEL
ITEM P/N QTY DESCRIPTION
17 23530 2 Hex Flange Bolt, 3/8 in. -16
18 58916 1 Handle Lock
19 62268 2 Lift Handle
20 59079 1 Cooler Guard
21 59095 2 Flange Nut, 1/4 in. -20
22 59127 1 Shuttle Check Valve
23 350041 1 Hollow Hex Plug 4 SAE
24 59131 2 Relief Valve
25 08104 1 Hollow Hex Plug 6 SAE
26 59128 1 Pressure Switch Assy
27 62319 2 Directional Valve
28 -- 2 Cap (Included with Item 27)
29 60958 2 Coil
30 64942 1 12 volt Receptacle Assy
31 60960 1 Combiner Valve
32 62298 1 Choke Cable Assy
33 62320 1 Solenoid Coil
34 --- 1 Nut, Incl. with Item 31
26
7
17
24
22
33
25
34
GTR20 User Manual ◄ 25
Page 26
FUEL TANK & CAP
NOTE: When ordering a fuel tank (item 37)
or fuel tank cap (item 35) DO NOT MIX OLD
STYLE TANK AND CAP WITH NEW STYLE
TANK AND CAP.
If you have a power unit and it was purchased
prior to 2011 and need to replace the fuel tank or
fuel tank cap, you must purchase the same tank
and cap that came with your unit.
For example if you have a power unit prior to
2011 do not purchase a new style fuel tank, your
engine will not be equipped with a fuel vapor
tting.
The old style fuel cap is a vented cap, while the
new style fuel cap is not a vented cap and venting is achieved thru the vapor line.
The old style fuel tank has only one fuel line
coming from the tank to the engine. The new
style fuel tank has two lines coming from the fuel
tank to the engine, one is the fuel line and the
other is a fuel vapor line.
P/N-73050
26 ► GTR20 User Manual
Page 27
1
2
3
4
5
6
7
8
9
10
11
3
3
3
12
HOSES, FITTINGS & CLAMPS
ITEM P/N QTY DESCRIPTION
1 59085 1 Manifold Assy, Dual Circuit
2 59104 1 Hose Barb, 3/4 in. Hose x 3/4 in. Pipe
3 62199 4 Hose Clamp
4 350000 2 Elbow, 45° Straight Thread
5 02773 1 Adapter
6 58569 1 Elbow, 90°
7 58943 2 Hose
8 350104 2 Connector, Straight Thread
9 40364 1 Elbow, 45°
10 59089 1 Hose, Return Briggs Engine
11 59106 1 Hose, Return Honda Engine
12 59105 1 Hose Barb, 3/4 in. Hose x 3/4 in. Pipe
GTR20 User Manual ◄ 27
Page 28
FUEL SHUTOFF
(RED WIRE)
MAG KILL
(BLACK WIRE)
STARTER SOLENOID
(GREEN WIRE)
STARTER POST (RED WIRE)
BLACK WIRE TO NEGATIVE “-”
SIDE HOUR METER
RECTIFIER
(WHITE WIRE)
WHITE WIRE ON SIDE OF
STARTER SWITCH
MAIN WIRING HARNESS
RED WIRE (P TERMINAL)
ORANGE WIRE (S TERMINAL)
YELLOW WIRE (I TERMINAL)
ENGINE OIL PRESS SWITCH
WIRING DETAIL
28 ► GTR20 User Manual
Page 29
DUAL CIRCUIT WIRE HARNESS
GTR20 User Manual ◄ 29
Page 30
Stanley Hydraulic Tools
3810 SE Naef Road
Milwaukie, Oregon 97267-5698 USA
(503) 659-5660 / Fax (503) 652-1780
www.stanleyhydraulics.com
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