Stanley GD50 User Manual

GD50

HYDRAULIC

GROUND ROD DRIVER

USER MANUAL

Safety, Operation and Maintenance

© 2014 Stanley Black & Decker, Inc.

New Britain, CT 06053

U.S.A.

39234 8/2018 Ver. 11

TABLE OF CONTENTS

SAFETY SYMBOLS .................................................................................................................................................4

SAFETY PRECAUTIONS .......................................................................................................................................5

TOOL STICKERS & TAGS ......................................................................................................................................6

HOSE TYPES ..........................................................................................................................................................7

HOSE RECOMMENDATIONS ................................................................................................................................ 8

HTMA / EHTMA REQUIREMENTS ........................................................................................................................9

OPERATION ..........................................................................................................................................................10

CHARGING THE ACCUMULATOR ...................................................................................................................... 12

TOOL PROTECTION & CARE .............................................................................................................................. 13

TROUBLESHOOTING ..........................................................................................................................................14

SPECIFICATIONS ................................................................................................................................................. 15

SERVICE TOOLS ..................................................................................................................................................15

GD50 PARTS ILLUSTRATION..............................................................................................................................16

GD50 PARTS LIST .................................................................................................................................................17

To ll out a product warranty validation form, and for information on your warranty,

visit www.stanleyinfrastructure.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 Infrastructure
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.

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 certied dealer, call Stanley Infrastructure at [phone] and ask for a Customer Service Representative.

GD50 User Manual ◄ 3

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 indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.

This safety alert and signal word indicates a potentially hazardous situation
which, if not avoided, could result in death or serious injury.

This safety alert and signal word indicates 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 ► GD50 User Manual

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 tool and

hose.

These 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 specic work area and local
safety regulations. Place the added precautions in the

space provided.

The GD50 Hydraulic Rod Driver 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

tool and hoses before operation. 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 tool 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 tool.

• Do not inspect or clean the tool while the hydraulic

power source is connected. Accidental engagement
of the tool can cause serious injury.

• Always connect hoses to the tool hose couplers

before energizing the hydraulic power source. Be

sure all hose connections are tight.

• Do not operate the tool at oil temperatures above

140 °F/60 °C. High temperatures can cause operator

discomfort.

• Do not operate a damaged, improperly adjusted or

incompletely assembled rod driver.

• Do not weld, cut with an acetylene torch or hardface

the rod driver anvil or guide housing.

• To avoid personal injury or equipment damage,

all tool repair, maintenance and service must only
be performed by authorized and properly trained
personnel.

• Always replace parts with replacement parts

recommended by STANLEY.

• Check fastener tightness often and before each use
daily.

• WARNING: Some dust created by power sanding,

sawing, grinding, drilling, and other construction
activities contains chemicals known to the State
of California to cause cancer, birth defects or
other reproductive harm. Some examples of these

chemicals are:

• Lead from lead-based paints,

• crystalline silica from bricks and cement
and other masonry products, and

• arsenic and chromium from chemically-
treated lumber.

Your risk from these exposures varies, depending
on how often you do this type of work. To reduce
your exposure to these chemicals: work in a well
ventilated area, and work with approved safety
equipment, such as those dust masks that are
specially designed to lter out microscopic particles.

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.

GD50 User Manual ◄ 5

Stanley Hydraulic Tools

Division of The Stanley Works

3810 SE Naef Road

Milwaukie, Oregon 97267 USA

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TOOL STICKERS & TAGS

37425
Name Tag

NOTE:

THE INFORMATION LISTED

DANGERDANGER

ON THE STICKERS SHOWN,

MUST BE LEGIBLE AT ALL

TIMES.

REPLACE DECALS IF

THEY BECOME WORN OR

DAMAGED. REPLACEMENTS

ARE AVAILABLE FROM

YOUR LOCAL STANLEY

DISTRIBUTOR.

The safety tag (P/N 15875) at right is
attached to the tool when shipped from

1. FAILURE TO USE HYDRAULIC HOSE LABELED AND CER­TIFIED AS NON-CONDUCTIVE WHEN USING HYDRAULIC
TOOLS ON OR NEAR ELECTRICAL LINES MAY RESULT IN
DEATH OR SERIOUS INJURY.

BEFORE USING HOSE LABELED AND CERTIFIED AS NON-
CONDUCTIVE ON OR NEAR ELECTRIC LINES BE SURE THE

HOSE IS MAINTAINED AS NON-CONDUCTIVE. THE HOSE

SHOULD BE REGULARLY TESTED FOR ELECTRIC CUR­RENT LEAKAGE IN ACCORDANCE WITH YOUR SAFETY
DEPARTMENT INSTRUCTIONS.

2. A HYDRAULIC LEAK OR BURST MAY CAUSE OIL INJEC­TION INTO THE BODY OR CAUSE OTHER SEVERE
PERSONAL INJURY.

A. DO NOT EXCEED SPECIFIED FLOW AND PRESSURE

FOR THIS TOOL. EXCESS FLOW OR PRESSURE MAY
CAUSE A LEAK OR BURST.

B. DO NOT EXCEED RATED WORKING PRESSURE OF

HYDRAULIC HOSE USED WITH THIS TOOL. EXCESS
PRESSURE MAY CAUSE A LEAK OR BURST.

C. CHECK TOOL HOSE COUPLERS AND CONNECTORS

DAILY FOR LEAKS. DO NOT FEEL FOR LEAKS WITH
YOUR HANDS. CONTACT WITH A LEAK MAY RESULT
IN SEVERE PERSONAL INJURY.

IMPORTANT

the factory. Read and understand the

safety instructions listed on this tag before

removal. We suggest you retain this tag and
attach it to the tool when not in use.

READ OPERATION MANUAL AND

SAFETY INSTRUCTIONS FOR THIS

TOOL BEFORE USING IT.

USE ONLY PARTS AND REPAIR

PROCEDURES APPROVED BY

STANLEY AND DESCRIBED IN THE

OPERATION MANUAL.

TAG TO BE REMOVED ONLY BY

TOOL OPERATOR.

SEE OTHER SIDE

D. DO NOT LIFT OR CARRY TOOL BY THE HOSES. DO

NOT ABUSE HOSE. DO NOT USE KINKED, TORN OR
DAMAGED HOSE.

3. MAKE SURE HYDRAULIC HOSES ARE PROPERLY CON­NECTED TO THE TOOL BEFORE PRESSURING SYSTEM.
SYSTEM PRESSURE HOSE MUST ALWAYS BE CON­NECTED TO TOOL “IN” PORT. SYSTEM RETURN HOSE
MUST ALWAYS BE CONNECTED TO TOOL “OUT” PORT.
REVERSING CONNECTIONS MAY CAUSE REVERSE
TOOL OPERATION WHICH CAN RESULT IN SEVERE
PERSONAL INJURY.

4. DO NOT CONNECT OPEN-CENTER TOOLS TO CLOSED­CENTER HYDRAULIC SYSTEMS. THIS MAY RESULT IN
LOSS OF OTHER HYDRAULIC FUNCTIONS POWERED BY
THE SAME SYSTEM AND/OR SEVERE PERSONAL INJURY.

5. BYSTANDERS MAY BE INJURED IN YOUR WORK AREA.
KEEP BYSTANDERS CLEAR OF YOUR WORK AREA.

6. WEAR HEARING, EYE, FOOT, HAND AND HEAD PRO­TECTION.

7. TO AVOID PERSONAL INJURY OR EQUIPMENT DAMAGE,
ALL TOOL REPAIR MAINTENANCE AND SERVICE MUST
ONLY BE PERFORMED BY AUTHORIZED AND PROPERLY
TRAINED PERSONNEL.

IMPORTANT

READ OPERATION MANUAL AND

SAFETY INSTRUCTIONS FOR THIS

TOOL BEFORE USING IT.

USE ONLY PARTS AND REPAIR

PROCEDURES APPROVED BY

STANLEY AND DESCRIBED IN THE

OPERATION MANUAL.

TAG TO BE REMOVED ONLY BY

TOOL OPERATOR.

SEE OTHER SIDE

6 ► GD50 User Manual

SAFETY TAG P/N 15875 (Shown smaller then actual size)

HOSE TYPES

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:

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 certifi 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
reinforcement, 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
inner tube, synthetic  ber braid reinforcement, and weather resistant thermoplastic or synthetic rubber cover.

This hose is not certifi 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. 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 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

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

GD50 User Manual ◄ 7

Min. Working Pressure

USE

Press/Return)

(

HOSE RECOMMENDATIONS

Certi ed 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

13-16 49-60 up to 25 up to 8

3/4 19 Return 2500 175

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

recommendations are intended to keep return

line pressure (back pressure) to a minimum

acceptable level to ensure maximum tool

performance.

This chart is intended to be used for hydraulic

8 ► GD50 User Manual

tool applications only based on STANLEY 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 maximum hydraulic system relief valve

setting.

All hydraulic hose must meet or exceed

speci cations as set forth by SAE J517.

HTMA / EHTMA REQUIREMENTS

HTMA / EHTMA REQUIREMENTS

TOOL TYPE

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 minimum operating temperature)

Temperature: Suffi cient heat rejection capacity to limit
maximum  uid temperature to:
(At maximum expected ambient temperature)

Minimum cooling capacity at a temperature di󰀨 erence 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 minimum full- ow  ltration 25 microns 25 microns 25 microns 25 microns

Sized for  ow of at least:
(For cold temp startup and maximum dirt-holding capacity)

Hydraulic  uid, petroleum based (premium grade, anti­wear, non-conductive) Viscosity (at minimum and maximum
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.

TYPE I TYPE II TYPE RR TYPE III

4-6 GPM

(15-23 LPM)

1500 psi

(103 bar)

2100-2250 psi

(145-155 bar)

250 psi

(17 bar)

400 ssu*

(82 centistokes)

140° F

(60° C)

3 hp

(2.24 kW)

40° F

(22° C)

30 GPM

(114 LPM)

100-400 ssu

(20-82

centistokes)

7-9 GPM

(26-34 LPM)

1500 psi

(103 bar)

2100-2250 psi

(145-155 bar)

250 psi

(17 bar)

400 ssu*

(82 centistokes)

140° F

(60° C)

5 hp

(3.73 kW)

40° F

(22° C)

30 GPM

(114 LPM)

100-400 ssu

(20-82

centistokes)

9-10.5 GPM

(34-40 LPM)

1500 psi

(103 bar)

2200-2300 psi

(152-159 bar)

250 psi

(17 bar)

400 ssu*

(82 centistokes)

140° F
(60° C)

6 hp

(5.22 kW)

40° F

(22° C)

30 GPM

(114 LPM)

100-400 ssu

(20-82

centistokes)

11-13 GPM

(42-49 LPM)

2100-2250 psi

(145-155 bar)

(82 centistokes)

100-400 ssu

centistokes)

1500 psi

(103 bar)

250 psi

(17 bar)

400 ssu*

140° F

(60° C)

7 hp

(4.47 kW)

40° F

(22° C)

30 GPM

(114 LPM)

(20-82

*SSU = Saybolt Seconds Universal

EHTMA
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 speci cation page for tool speci c requirements.

B

3.5-4.3 GPM
(13.5-16.5

LPM)

1870 psi

(129 bar)

2495 psi

(172 bar)

C

4.7-5.8 GPM
(18-22 LPM)

1500 psi

(103 bar)

2000 psi

(138 bar)

CLASSIFICATION

D

7.1-8.7 GPM
(27-33 LPM)

1500 psi

(103 bar)

2000 psi

(138 bar)

9.5-11.6 GPM
(36-44 LPM)

1500 psi
(103 bar)

2000 psi
(138 bar)

GD50 User Manual ◄ 9

11.8-14.5 GPM
(45-55 LPM)

1500 psi

(103 bar)

2000 psi

(138 bar)

OPERATION

PREPARATION PROCEDURES

PREPARATION FOR INITIAL USE

Each unit as shipped has no special unpacking or
assembly requirements prior to usage. Inspection to
assure the unit was not damaged in shipping and does
not contain packing debris is all that is required.

CHECK HYDRAULIC POWER SOURCE

1. Using a calibrated ow meter and pressure gauge,
check that the hydraulic power source develops a
ow of 7–9 gpm/26–34 lpm for HTMA Type II tools/
EHTMA category D at 2000 psi/105–140 bar.

2. Make certain the hydraulic power source is equipped
with a relief valve set to open at 2100–2250 psi/145–
155 bar minimum.

3. Check that the hydraulic circuit matches the tool for
open-center (OC) operation.

CHECK TOOL

1. Make sure the tool contains the correct anvil for
the rod size to be driven. Use the 5/8 inch anvil
(standard in the model GD50132RF Rod Driver) for
5/8 inch diameter rod. Use the 1 inch anvil (standard
in the model GD50133RF Rod Driver) for 3/4 inch to

1 inch diameter rod. Failure to use the correct anvil

with the appropriate rod size can result in damage to
the tool or personal injury.

2. There should be no signs of leaks.

3. The tool should be clean, with all ttings and

fasteners tight.

CHECK TRIGGER MECHANISM

1. Check that the trigger operates smoothly and is free
to travel between the ON and OFF positions.

OPERATING PROCEDURES

1. Observe all safety precautions.

2. Move the hydraulic circuit control valve to the ON
position.

3. Place the anvil of the rod driver over the rod to be

driven.

4. Ensure adequate down pressure is applied to the
rod driver before starting the rod driver. To start the
rod driver, press the button on the control valve to
the ON position. Adequate down pressure is very

important. When you wish to stop the tool, press the

button on the control valve to the OFF position.

INLINE CONTROL VALVE OPERATION

The 38632 Inline Control Valve is designed to provide
the ON/OFF functions for a hydraulic tool connected to
either an OPEN CENTER (OC) hydraulic system or an
CLOSED CENTER (CC) hydraulic system. The valve
is to be used with tools which do not have an ON/OFF
trigger control. The 38632 Control Valve can be used on
hydraulic systems producing up to 10 gpm/38 lpm with
a maximum relief valve setting of 2500 psi/172 bar. The
valve ports are -8 SAE (3/4-16 thread) O-ring ports.

SETTING FOR OPEN CENTER (OC) OR
CLOSED CENTER (CC)

Set the valve to OC or CC before connecting it to the

hydraulic system. To set the valve for open center

operation, use a straight blade screw driver to turn the
selector screw counter clockwise until it stops. To set

the valve for closed center operation, turn the selector

screw clockwise until it stops.

CONNECT HOSES

1. Wipe all hose couplers with a clean, lint-free cloth
before making connections.

2. Connect the hoses from the hydraulic power source
to the hose couplers on the tool. Connect the return
hose rst and disconnect it last to minimize or avoid
trapped pressure within the rod driver.

3. Observe ow indicators stamped on hose couplers
to be sure that oil will ow in the proper direction.

The female coupler is the inlet coupler.

Note: The pressure increase in uncoupled hoses
left in the sun may result in making them di󰀩cult to
connect. When possible, connect the free ends of
operating hoses together.

10 ► GD50 User Manual

Be sure you know if you have an OPEN CENTER

(OC) OR CLOSED CENTER (CC) hydraulic system,

DO NOT attempt to install or operate the 38632

Valve until you do. Incorrect installation or operation

of the valve can result in seal failures in the tool,

cause excessive heat in the hydraulic system,

and may damage the tool and hydraulic system.

Understand which type of hydraulic system you are

using before installing or operating this valve.

OPERATION

INSTALLING THE VALVE

Connect the valve to the hydraulic system as shown in

Figure 2.

OPERATING THE VALVE

Connect the valve to the tool using the illustration below
as a guide. Make sure the valve spool on the valve is

pushed OFF before connecting the valve to the hydraulic

system. Make sure the hydraulic system is OFF before
connecting the valve to the hydraulic system. Connect

the valve to the hydraulic system. Turn ON the hydraulic

system. Place the tool to be operated in its operating
position. Push the valve spool ON to begin operating the
tool. Push the valve spool OFF to stop operating the tool.

Turn the hydraulic system OFF before disconnecting the
valve.

Selector Screw

Tool Hoses

IN

72264 Valve

00936 Adapter Fittings

Quick Disconnect Couplers

(PRESSURE)

OUT

(RETURN)

Figure 2. Connecting the Valve

COLD WEATHER OPERATION

If the rod driver is to be used during cold weather, preheat
the hydraulic uid at low engine speed. When using the
normally recommended uids, uid temperature should
be at or above 50 °F/10 °C (400 ssu/82 centistokes)

before use.

GD50 User Manual ◄ 11

GAUGE

CHUCK

TESTER CHARGI NG
VALVE

CW

ACCUMULATOR TESTER ( P/ N 02835 )

Figure 2

LOCATI ON OF CHARGING VALVE

Liquid Filled Gauge w/Snub Valve

Nitrogen Tank

( )

Not included in Kit

Gauge

Hose

Chuck

Charge Fitting

Charging Valve

31254 ACCUMULATOR CHARGE KIT

Includes: Liquid Filled Gauge w/Snub Valve,
Hose, Charge Fitting, 02835 Tester, and Box
(not pictured)

02835 TESTER

CHARGING THE ACCUMULATOR

To check or charge the accumulator the following
equipment is required:

• Charge kit (Part Number 31254) Includes the
following:

– Accumulator tester (P/N 02835).

– Charge assembly (P/N 15304). Includes a liquid-

lled gauge with snub valve, hose and ttings.

• NITROGEN bottle with a 800 psi/56 bar minimum
charge (not a part of 31254 kit).

1. Holding the chuck end of the STANLEY tester
(P/N 02835), turn the gauge fully counterclockwise
to ensure the stem inside the chuck is completely

retracted.

2. Thread the tester onto the charging valve of the tool

accumulator (do not advance the gauge-end into
the chuck end. Turn as a unit). Seat the chuck on

the accumulator charging valve by hand tightening
only.

3. Advance the valve stem by turning the gauge-end
clockwise.

4. Connect the charging assembly to the valve on the
tester.

5. Adjust the regulator on the nitrogen bottle to 600

psi/42 bar.

Note: It may be necessary to set the regulator at
650–700 psi/41–48 bar to overcome any pressure
drop through the charging system.

Liquid Filled Gauge w/ Snub Valve

6. Open the valve on the charging assembly hose.
When the tester gauge reads 600–700 psi/41–48

bar, close the valve on the charging assembly hose
and remove the charging assembly.

7. Turn the gauge end of the tester fully

counterclockwise to retract the plunger in the
chuck. Remove the tester from the charge valve.

8. Replace the valve cap.

TESTING THE ACCUMULATOR
PRESSURE

1. Follow Steps 1 through 3 under CHARGING THE
ACCUMULATOR.

2. Read the pressure on the gauge. It should be
between 500–700 psi/35–48 bar.

3. If the pressure is low, recharge the tool.

31254 ACCUMULATOR CHARGE KIT

Includes: Liquid Filled Gauge w/ Snub Valve,
Hose, Charge Fitting, 02835 Tester, and Box
(not pictured)

12 ► GD50 User Manual

Nitrogen Tank

(Not included in Kit)

Hose

Gauge

Figure 3. Charging the Accumulator

Charge Fitting

Charging Valve

02835 Tester

Chuck

TOOL PROTECTION & CARE

In addition to the safety precautions found in

this manual, observe the following for equipment

protection and care.

• Make sure all couplers are wiped clean before
connection.

• The hydraulic circuit control valve must be in the

OFF position when coupling or uncoupling hydraulic

tools. Failure to do so may result in damage to

the quick couples and cause overheating of the

hydraulic system.

• Always store the tool in a clean dry space, safe from
damage or pilferage.

• Make sure the circuit PRESSURE hose (with male

quick disconnect) is connected to the IN port. The
circuit RETURN hose (with female quick disconnect)
is connected to the opposite port. Do not reverse
circuit ow. This can cause damage to internal seals.

• Always replace hoses, couplings and other parts
with replacement parts recommended by STANLEY.
Supply hoses must have a minimum working
pressure rating of 2500 psi/172 bar.

• Do not exceed the rated ow. Rapid failure of the
internal seals may result. See “SPECIFICATIONS”
on page 15 for correct ow rate and model

number.

• Always keep critical tool markings, such as warning

stickers and tags, legible.

• Tool repair should be performed by experienced
personnel only.

• Make certain that the recommended relief valves
are installed in the pressure side of the system.

• Do not use the tool for applications for which it was
not intended.

GD50 User Manual ◄ 13

TROUBLESHOOTING

If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem.

When diagnosing faults in operation of the spike driver, always check that the hydraulic power source is supplying
the correct hydraulic ow and pressure to the spike driver as listed in the table. Use a ow meter known to be
accurate. Check the ow with the hydraulic oil temperature at least 80 °F/27 °C.

PROBLEM CAUSE SOLUTION

Rod driver does not run. Power unit not functioning. Check power unit for proper ow and

pressure (7–9 gpm/26–34 lpm at
2000 psi/140 bar).

Couplers or hoses blocked. Remove restriction.

Pressure and return line hoses

reversed at ports.

Mechanical failure of piston or
automatic valve.

Rod driver does not hit e󰀨ectively. Power unit not functioning. Check power unit for proper ow and

Couplers or hoses blocked. Remove restriction.

Low accumulator charge (pressure
hose will pulse more than normal).

Fluid too hot (above 140 °F/60 °C). Provide cooler to maintain proper

Rod anvil is not sliding freely in the

anvil guide.

Rod driver operates slow. Low oil ow from power unit. Check power source for proper ow.

High back pressure. Check hydraulic system for

Be sure hoses are connected to their
proper ports.

Have inspected and repaired by an
authorized dealer.

pressure (7–9 gpm/26–34 lpm at
2000 psi/140 bar).

Have recharged by an authorized
dealer.

uid temperature.

Remove, clean and replace as

necessary.

excessive back pressure and correct
as required.

14 ► GD50 User Manual

SPECIFICATIONS

Capacity (Rod Anvil)

1/2 to 5/8 inch/12 to 16 mm diameter rod (model GD50132RF)

3/4 to 1 inch/19 to 25 mm diameter rod (model GD50133RF)

Pressure Range.............................................................................................................. 1500–2000 psi/105–140 bar

Maximum Back Pressure...................................................................................................................... 250 psi/17 bar

Flow Range ................................................................................................................................ 7–9 gpm/26–34 lpm

Couplers .........................................................................................HTMA/EHTMA Flush Face Type Male & Female

Hose Whips ........................................................................................................................................................... Yes

Weight .................................................................................................................................................57.3 lbs./26 kg

Overall Length .............................................................................................................................25.5 inches/64.8 cm

Overall Width ..................................................................................................................................10 inches/25.4 cm

Maximum Fluid Temperature .................................................................................................................. 140 °F/60 °C

SERVICE TOOLS

DESCRIPTION PART NUMBER

O-ring Tool Kit: General Service of Seals .......................................................................................................... 04337

Split Rings: Used with 04910.............................................................................................................................04908

Flow Sleeve Removal Tool ................................................................................................................................ 04919

Flow Sleeve Removal Tube: Used with 04908 & 05508....................................................................................04910

Bearing Puller Kit: General Bearing Pulling ....................................................................................................... 05064

Accumulator Disassembly Tool: Used with 04910 ............................................................................................. 05508

Tamper Sleeve Tool: Used to Pull Porting Block from Valve Block .................................................................... 01120

Accumulator Cylinder Puller: An Aluminum Disk (handy for protecting parts when using an arbor press ......... 05640

GD50 User Manual ◄ 15

GD50 PARTS ILLUSTRATION

56

INLINE VALVE
ASSEMBLY

NEW INLINE VALVE

NOTE: IF YOUR INLINE VALVE DOES NOT
CONTAIN THIS PART, (SEAL CAP) ORDER
INDIVIDUAL PARTS FROM OLD INLINE VALVE.

16 ► GD50 User Manual

OLD INLINE VALVE

GD50 PARTS LIST

PART

ITEM

NO. QTY DESCRIPTION

1 35770 2 HANDLE BAR

2 370351 4 CAPSCREW

3 07493 1 O-RING PLUG-MALE

4 05243 1 ORIFICE PLUG (INCL W/ ITEM 13)

5 20499 1 CHARGE VALVE

6 04374 4 LOCK NUT

7 15190 1 TOP PLATE

8 00720 4 SET SCREW

9 07479 1 DIAPHRAGM

10 00293 1 O-RING

11 15188 1 VALVE SPOOL

12 04058 1 SPRING

13 11588 1 ACCUMULATOR VALVE BLOCK

16 10536 1 SELECTOR SCREW

17 04381 2 BACK-UP RING

18 04379 2 O-RING

19 04378 1 PORTING BLOCK

20 35784 2 HOSE ASSY

21 07480 1 AUTOMATIC VALVE BODY

22 16070 1 RETAINING RING

23 56749 2 SEAL CAP (NEW INLINE VALVE)

23A 01003 2 VALVE BUTTON (OLD INLINE VALVE)

24 07224 2 BACK-UP RING (NEW INLINE VALVE)

24A 13568 2 BACK-UP RING (OLD INLINE VALVE)

25 07626 2 O-RING (NEW INLINE VALVE)

25A 13567 2 O-RING (OLD INLINE VALVE)

26 67008 1 VALVE SPOOL (NEW INLINE VALVE)

26A 38631 1 VALVE SPOOL (OLD INLINE VALVE)

27 00936 2 ADAPTOR

28 03973 1 MALE COUPLER BODY

29 03972 1 FEMALE COUPLER BODY

30 04382 1 AUTOMATIC VALVE

31 04571 2 PUSH PIN

32 02900 2 ROLL PIN

33 37425 1 NAME TAG

34 04383 1 FLOW SLEEVE TUBE

35 04384 1 FLOW SLEEVE

36 04605 4 PUSH PIN

37 04954 1 PISTON

38 02022 1 O-RING

39 04387 1 WIPER RING

40 04780 1 BACK-UP WASHER

41 04386 1 CUP SEAL

42 12139 4 SIDE ROD

43 43527 1 ADAPTOR BLOCK

PART

ITEM

NO. QTY DESCRIPTION

44 72592 1 ADAPTOR BLOCK ASSY

45 12146 1 SPRING

46 36106 1 ROD ANVIL, 5/8 INCH RODS

35751 1 ROD ANVIL, 3/4 TO 1 IN. RODS

47 65812 1 ANVIL GUIDE

48 35753 1 GUIDE HOUSING

49 67007 1 VALVE BODY ASSY. (NEW INLINE

49A 38629 1 VALVE BODY ASSY. (OLD INLINE

50 00026 1 O-RING

51 65813 1 BUMPER

52 371071 2 WASHER

53 01604 2 O-RING (NEW INLINE VALVE)

54 56747 2 SEAL WIPER (NEW INLINE VALVE)

55 00856 2 ADAPTOR

56 72264 1 INLINE VALVE ASSEMBLY

(INCLUDES UPPER ANVIL STOP)

(MODEL GD50132RF)

(MODEL GD50133RF)

VALV E)

VALV E)

Model GD50132RF—1/2 and 5/8 inch rods.

Model GD50133RF—3/4 and 1 inch rods.

Verify the correct model number before ordering.

Seal Kit

GD50 Rapid Fire Model—04595

All Other GD50 Models—13552

Read Before Ordering Inline Valve Parts:

Inline Valve Assembly (OC-CC) - 72264

Includes Items (16, 22 thur 26, 49, 50, 53, and 54)

The inline valve changed around June 2011. To
determine if you have the old or new inline valve, see

parts illustration.

Note: Individual parts are still available for the older
inline valve but if replacing the entire inline valve
assy, you must order the new inline valve assy P/N-

72264.

GD50 User Manual ◄ 17

STANLEY Infrastructure

6430 SE Lake Road

Portland, Oregon 97222 USA

[phone] / Fax [phone]

www.stanleyinfrastructure.com