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SPX POWER TEAM
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EP-720-G-230

SPX POWER TEAM 3S-6224, 65804, PA550, X1A1, 8S-8033 Operating Instructions Manual

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SPX Hydraulic Technologies 5885 11th Street Rockford, IL 61109-3699 USA
powerteam.com
Tech Services: +1 800 477 8326 Fax: +1 800 765 8326 Order Entry: +1 800 541 1418 Fax: +1 800 288 7031
AIR, ELECTRIC, OR GAS-POWERED
TWO-STAGE HYDRAULIC PUMP
5,000 OR 10,000 PSI
Operating Instructions for:
© 2014 SPX CORPORATION
1
Form No. 102463
Rev. 9 February, 2015
CONTENTS
SAFETY DEFINITIONS 3
SAFETY PRECAUTIONS 3
HYDRAULIC PUMP SET-UP PROCEDURE 7
1. Motor Hook-up and Operation 7
2. Electric line connection (for electric motor units only) 7
SET-UP AND OPERATION 9
1. Filling The Reservoir 9
2. Hydraulic Connections 10
3. Valve Options 10
4. Hydraulic Gauge (Optional) 10
5. Adjusting The Hydraulic Gauge 12
6. Reservoir Vent Air Filter (Optional) 12
7. Priming The Pump 12
8. Adjusting The Pressure Regulating Controls 13
9. Adjusting The Pressure Regulating Valve 13
10. Adjusting The Pressure Switch 14
PREVENTIVE MAINTENANCE 15
1. Bleeding Air From The System 15
2. Hydraulic Fluid Level 15
3. Lubrication (Air Driven Motor Only) 15
4. Maintenance Cleaning 15
5. Draining And Flushing The Reservoir 16
6. Adding Oil To The Reservoir 16
7. Sound Reduction 17
8. Checking Brushes On Universal Motors 17
REASSEMBLY SPECIFICATIONS 17
NEEDLE BEARING INSTALLATION SPECIFICATIONS 18
TROUBLESHOOTING GUIDE 18
POWER TEAM FACILITIES 23
DECLARATION OF INCORPORATION 24
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
SAFETY DEFINITIONS
Safety symbols are used to identify any action or lack of action that can cause personal injury. Your reading and understanding of these safety symbols is very important.
DANGER
Danger is used only when your action or lack of action will cause serious human injury or death.
WARNING
Warning is used to describe any action or lack of action where a serious injury can occur.
DANGEROUS VOLTAGE
Dangerous Voltage is used to describe any action or lack of action that could cause seri­ous personal injury or death from high voltage electricity.
CAUTION
Caution is used when action or lack of action can cause equipment failure, either immedi­ate or over a long period of time.
SAFETY PRECAUTIONS
To help prevent personal injury,
HYDRAULIC HOSE
• Before operating the pump, all hose connections must be tightened with the proper tools. Do not overtighten. Connections should only be tightened securely and leak-free. Overtightening can cause premature thread failure or
high pressure ttings to split at pressures lower than their rated capacities.
• Always shut off the electric motor before breaking any connections in the system.
• Should a hydraulic hose ever rupture, burst, or need to be disconnected, immediately shut off the pump. Never attempt to grasp a leaking pressurized
hose with your hands. The force of escaping hydraulic uid could cause
serious injury.
• Do not subject the hose to potential hazard such as re, sharp surfaces, extreme heat or cold, or heavy impact. Do not let the hose kink, twist, curl or bend so tightly that oil ow within the hose is blocked or reduced. Periodi­cally inspect the hose for wear, because any of these conditions can dam­age the hose.
WARNING
• Do not use the hose to move attached equipment. Stress can damage the hose, causing personal injury.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
• Hose material and coupler seals must be compatible with the hydraulic uid used. Hoses also must not come in contact with corrosive materials such as creosote-impregnated objects and some paints. Consult the manufacturer before painting a hose. Never paint the couplers. Hose deterioration due to corrosive materials can result in personal injury.
PUMP
• Do not exceed the PSI hydraulic pressure rating noted on the pump nameplate or tamper with the internal high pressure relief valve. Creating pressure be­yond rated capacities can result in personal injury.
• Before replenishing the oil level, retract the system to prevent overlling the
pump reservoir. An overll can cause personal injury due to excess reservoir
pressure created when the cylinders are retracted.
CYLINDER
• Do not exceed the rated capacities of the cylinders. Excess pressure can result in personal injury.
• Do not set poorly balanced or off-center loads on a cylinder. The load can tip and cause personal injury.
POWER SUPPLY (Electric)
• Never use an ungrounded power supply with this unit.
• The pump must be compatible with existing line voltage.
• Disconnect the pump from the power supply when performing maintenance or repair on the unit.
• If the unit’s power supply is damaged or the inner wiring is exposed in any way, replace immediately.
• Any electrical work must be done by a qualied electrician.
• If the power cord is damaged or wiring is exposed, replace or repair immedi­ately.
• Changing the voltage on the jet motor (single, or three phase) is a complicated and, if not done correctly, dangerous procedure. Consult the pump manufac­turer’s Technical Services Department for specic information before attempt­ing any rewiring. Rewiring voids CSA approval.
• All voltages must be wired for CW rotation when viewed from the lead end (top) of the motor.
• Check the total amperage draw for the electrical circuit you will be using. (For example: Do not plug a motor or motors that may draw 25 amps into a 20 amp fused electrical circuit.)
• Do not attempt to increase the powerline capacity by replacing a fuse with another fuse of higher value. Overheating of the powerline and the possibility
of a re will result.
• To rewire a motor from one voltage to another or when a ow control valve is changed between manual and solenoid, consult the electrical schematic in the pump’s parts list.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
• Circuit Breakers: If motor stops due to an overload or power outage, Universal Motor: Move motor switch to OFF and control valve to neutral. Let motor cool or wait until power is restored. Reset circuit breaker switch in power panel. (The pump motor doesn’t have a circuit breaker.) Single-phase Motor: Thermal overload switch will break circuit to the motor. Move motor switch to OFF and control valve to neutral. Allow motor to cool before switching on again, or wait until power is restored. Three-phase Motor: A magnetic starter switch breaks circuit to the motor. Move the motor switch to OFF and control valve to neutral. Remove the cover on motor control box. Let the motor cool or wail until power is restored. One of three reset buttons must be pushed in to reset motor. Re­place cover.
Power Supply (Gasoline Engine)
• Read the instruction manual for the gasoline engine before using.
• Do not allow fuel to splash on the engine when refueling.
• Do not add fuel when the engine is running or very hot.
Power Supply (Air Driven Motor)
• Disconnect air supply when pump is not in use or when breaking any connec­tion in the hydraulic system.
• A shut-off valve or quick disconnect should be installed in the air line to the pump unit. Close the shut-off valve before connecting the air line to the pump.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
NOTE
• Carefully inspect the pump upon arrival. The carrier, not the manufacturer, is respon­sible for any damage resulting from shipment.
• Read and carefully follow these instructions. Most problems with new equipment are caused by improper operation or installation.
• The hydraulic power unit can be ordered with “building block” exibility. The customer can choose from a variety of motors, controls, reservoirs, and other options. Because of the many options available, these instructions will include directions for options that your particular pump may not have.
• Do not change motors without consulting the pump manufacturer’s Technical Services Department.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
HYDRAULIC PUMP SET-UP PROCEDURE
1. Motor Hook-up and Operation
A. Universal Motor
The universal motor is wired for 115 or 230 volts, 50/60 cycles according to the customer’s request. This motor cannot be rewired.
B. Jet Motor, Single-phase
The single-phase jet motor is wired for 115 or 230 volts, 50/60 cycles according to the customer’s request.
C. Jet Motor, Three-phase
The three-phase jet motor is wired for 230 or 460 volts, 50/60 cycles according to the customer’s request.
D. Gasoline-Powered
Consult the instruction manual for the gasoline engine.
E. Air Motor
Remove the thread protectors from the air inlet, and install the air supply ttings (not sup­plied) as shown in Figure 1. Air supply must be minimum 50 CFM and 80 PSI, with 100 PSI maximum.
2. Electric Line Connections (for electric motor units only)
DANGER
Your pump comes equipped with a standard plug and cord and is appropriate for the
specied voltage of this pump (as identied on the product and package labeling). Before each use of the pump, the user must consult with the gure below in order to determine the applicable current draw for each specic application and then must ensure that the
infrastructure of the facility in which the pump is to be used is suitable for safe operation of this pump based upon the following guidelines:
A. Line circuit protection and disconnect are to be provided by the customer.
B. Line circuit protection is to be at least 115% of the full load current at the peak pressure
attained when the pump is in use (see gure below). Per the specic application.
C. Refer to the pump nameplate for additional information about the pump’s power rating.
D. Refer to the SAFETY PRECAUTIONS at the beginning of this manual before operation and
before making any modications.
MODIFICATIONS TO THE CORD AND/OR PLUG SHOULD ONLY BE DONE BY A QUALIFIED ELECTRICIAN. IT IS THEIR RESPONSIBILITY TO ADHERE TO ALL LOCAL, STATE AND FEDERAL CODES.
Alternative cord sets are available based upon your specic application requirements (see gure below). Contact your local service center or distributor or www.PowerTeam.com for
details.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
IMPORTANT
Seal all external pipe connections with a high-quality, nonhardening thread sealant. Teon
tape can be used to seal hydraulic connections if only one layer of tape is used. Apply the tape carefully, two threads back, to prevent it from being pinched by the coupler and broken off inside the system. Any loose pieces of tape could travel through the system and obstruct
the ow of oil or cause jamming of precision-t parts.
FIGURE 1
SET-UP AND OPERATION
1. Filling The Reservoir
NOTE
The pump has been shipped without oil in the reservoir. High-grade hydraulic oil has been shipped with the pump in a separate container. If additional oil is required, use a high-grade, approved hydraulic oil.
A. Clean the area around the ller cap to remove all dust and grit. Any dirt or dust in the oil can
damage the polished surfaces and precision-t components of the pump.
B. Retract all cylinders to the return position.
C. Remove the ller cap, and insert a clean funnel and lter. Fill with hydraulic oil to 1/2” from
the top of the ller hole. Replace ller cap with the breather-hole in the ller cap open.
D. Cycle the pump (with cylinders attached) several times. Retract the cylinders, and check the
oil level in the pump reservoir again.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
2. Hydraulic Connections
A. Clean all the areas around the oil ports of the pump and cylinder.
B. Inspect all threads and ttings for signs of wear or damage, and replace as needed.
C. Clean all hose ends, couplers or union ends.
D. Remove the thread protectors from the hydraulic oil outlets. Connect the hose assembly
to the hydraulic oil outlet, and couple the hose to the cylinder. Although a high-grade, non­hardening thread sealant is preferred, Teon tape may be used to seal hydraulic connec­tions if only one layer of tape is used. Apply carefully to prevent the tape from being pinched by the coupler and broken off inside the pipe end. Any loose pieces of tape could travel
through the system and obstruct the ow of oil.
3. Valve Options
A. Automatic Dump Valve
When the pressure switch setting is reached, the switch shuts off the motor. All pressure is automatically dumped. Turn the adjusting screw clockwise to increase pressure; turn the adjusting screw counterclockwise to decrease pressure. Refer to the section titled “Adjusting
the Pressure Switch” for more information.
B. “Posi-Check” Valves
“Posi-Check” is a valve feature that holds the load while shifting from “advance” to “hold”
positions.
4. Hydraulic Gauge (Optional)
A. Automatic Dump Valve
To monitor line pressure when using an automatic dump valve, a tee tting is used between
the valve and the pressure switch to adapt a hydraulic gauge. See Figure 2.
© 2014 SPX CORPORATION
FIGURE 2
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Form No. 102463
Rev. 9 February, 2015
B. “Posi-Check” Valves
If a “Posi-Check” valve is used, a hydraulic gauge shows zero pressure when the valve is
switched to the neutral (hold) position. Cylinder pressure, however, is held without loss.
(1) Installation of the hydraulic gauge (refer to Figure 3):
(a) Remove the pipe plug from the valve’s gauge port.
(b) Install a 45° elbow tting.
(c) Install the gauge into the 45° elbow tting.
FIGURE 3
NOTE
Seal all external pipe connections with a high-grade, non-hardening pipe sealant. Teon tape
can also be used to seal hydraulic connections if only one layer of tape is used. Apply the tape carefully to prevent it from being pinched by the coupler and broken off inside the pipe
end. Any loose pieces of tape could travel through the system and obstruct the ow of oil.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
5. Adjusting The Hydraulic Gauge
Adjustment Screw
A. Locate the adjustment screw on the gauge (see Figure 4) and make adjustments as needed with a screwdriver. The adjustment screw is located on the lower right back rim of the gauge. You must reach under the portion of the shroud that the gauge is mounted in.
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FIGURE 4
6. Reservoir Vent Air Filter (Optional)
A. Remove the ller cap, and insert either the 45° tting or the straight tting. Fasten O-ring
end of tting into pump.
B. If the 45° tting is used, place the rubber spacer (included) on the top threaded portion.
Then thread the air lter on and hand tighten.
C. If the straight tting is used, thread the air lter on and hand tighten.
7. Priming The Pump
A. When operating the pump for the rst time:
B. Valve and hose connections must be tight, and the reservoir must be lled to the proper oil
level. Start the motor.
C. Jog the pump several times to build pressure. If the pump doesn’t build pressure, it may not
be primed. Disconnect a hose from the system and route it back to the pump reservoir. Run
the pump until a steady ow of oil is observed free of suspended air bubbles. Reconnect the
hose to the system.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
D. Run cylinder out to its full travel several times to eliminate air from the system. For more
complete instructions, refer to the section titled “Bleeding Air From The System” in PRE­VENTIVE MAINTENANCE section.
E. The pump is ready to be put into regular operation.
IMPORTANT
After eliminating trapped air from a large work-holding system, retract the cylinders and rell the pump reservoir to 1/2” from the top of the ller hole.
8. Adjusting The Pressure Regulating Controls
A. The pressure regulating valve and pressure switch are shown in Figure 5. The pressure regulating valve can be adjusted to bypass oil at a given pressure setting while the pump con­tinues to run. The pressure switch can be adjusted to stop the pump at a given pressure setting. To ensure accuracy and low pressure differential (approx. 300 PSI) throughout the pressure range (1,000 to 10,000 PSI depending on the pump model), the pressure switch should be used with the pressure regulating valve. The pressure switch must be set at a pressure lower than the pressure regulating valve to work properly.
9. Adjusting The Pressure Regulating Valve
For easy adjustment of the pressure regulating valve, always adjust the pressure by increas­ing to the desired pressure setting.
© 2014 SPX CORPORATION
FIGURE 5
NOTE
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Form No. 102463
Rev. 9 February, 2015
A. Loosen the locknut on the pressure regulating valve (C), and back the adjusting screw (B)
out a few turns with a screwdriver by turning in a counterclockwise direction. This will de­crease the setting to a lower than desired pressure.
B. The pump must be completely connected. Set the motor control toggle switch on “Run” and
push the “Start” button.
C. With the screwdriver, slowly turn the adjusting screw (B) in a clockwise direction. This gradu-
ally increases the pressure setting. When the desired pressure is reached, lock the adjust­ing screw in position by tightening the locknut.
IMPORTANT:
• The pressure range is from 1,000 to 10,000 PSI depending on the pump model.
• The pressure switch must be set at a higher pressure than working range to prevent shut down during adjustment. It is also possible to bypass the pressure switch contacts by holding the start switch or remote control switch so that the motor runs continuously.
10. Adjusting The Pressure Switch
A. Generally, the pressure switch should be used with the pressure regulating valve. A pressure switch can be used alone for operating electrical devices such as motors, solenoids, relays, etc., which are located elsewhere in the circuit. Refer to Figure 5.
B. Loosen the locknut on the pressure switch (D), and turn adjusting screw (A) in a clockwise
direction. This increases the pressure setting to a higher than desired pressure.
C. Adjust the pressure regulating valve to the desired pressure setting by using the procedure
previously outlined.
D. With the pump running and bypassing oil at the desired pressure, slowly turn the pressure
switch adjusting screw (A) in a counterclockwise direction, decreasing the pressure switch setting until the pump motor shuts off. Then lock the adjusting screw (A) in position by tight­ening the locknut.
E. Release pressure. Run the pump to check the pressure setting and cut-out of the motor. If
may be necessary to make a second adjustment.
NOTE
When the pressure switch setting is reached, the motor will shut off. However, the “coast” of the motor continues to deliver oil for a brief period. The pressure regulating valve bypasses this surplus oil, preventing it from going into the system. As a result, the pressure differen­tial can be held to approximately 300 PSI.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
PREVENTIVE MAINTENANCE
WARNING
To help prevent personal injury,
• Disconnect the pump from the power supply before performing maintenance or repair procedures.
• Repairs and maintenance are to be performed in a dust-free area by a qualied technician.
1. Bleeding Air From The System
Air can accumulate in the hydraulic system if the reservoir oil level is too low. This air causes the cylinder to respond in an unstable or slow manner. To remove the air:
A. The hydraulic cylinder(s) must be positioned on their side(s) with the couplers located up-
ward.
B. Remove any load from the cylinder(s), and cycle the hydraulic system through several
cycles (fully extend and retract the cylinders).
IMPORTANT
Some of the single-acting spring return cylinders have a cavity in the rod that forms
an air pocket. This type of cylinder must be positioned upside down when the hydrau­lic system is bled.
2. Hydraulic Fluid Level
A. Check the oil level in the reservoir after each 10 hours of use. Proper oil level is 1/2” from
the top of the ll hole when all cylinders are retracted.
B. Drain, ush, and rell the reservoir with an approved, high-grade hydraulic oil after approxi-
mately every 300 hours of use. The frequency of oil changes will depend upon the general working conditions, severity of use, and overall cleanliness and care given the pump.
3. Lubrication (Air Driven Motor Only)
A. If the pump is operated on a continuous duty cycle or a maximum speeds for extended periods, an automatic air line oiler should be installed in the air inlet line as close to the pumping unit as possible. Set the unit to feed 1-3 drops of oil per minute (one drop for every 50-75 CFM of air) into the system, or refer to the pump manufacturer’s instructions. Use SAE No. 10 oil.
4. Maintenance Cleaning
A. Keep the pump’s outer surface as free from dirt as possible.
B. Seal all unused couplers with thread protectors.
C. Keep all hose connections free of dirt and grime.
D. The breather-hole in the ller cap must be clean and unobstructed at all times.
E. Equipment connected to the pump must be kept clean.
F. Use only an approved, high-grade hydraulic oil in this pump. Change as recommended
(every 300 hours).
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
5. Draining And Flushing The Reservoir
IMPORTANT
Clean the pump exterior before the pump interior is removed from the reservoir.
A. Remove the ten screws fastening the motor and pump assembly to the reservoir.
IMPORTANT
Do not damage the gasket or pump the lter or pressure regulating valves when lifting the
pump and motor off the reservoir. See Figure 6.
FIGURE 6
B. Clean the inside of the reservoir and ll with a suitable ushing oil. Rinse the lter clean.
C. Place the pump and motor assembly back onto the reservoir, and secure with two machine
screws assembled on opposite corners of the housing.
IMPORTANT
The hydraulic ow control valve must be in the neutral position for the following step. If the
pump is equipped with a valve that has only an advance or retract position, place the valve in the advance position, and connect a hose to the advance port on the valve. Place the
other end of the hose into the oil ller plug hole.
D. Run the pump for several minutes. Then disconnect the motor and pump assembly, and
drain and clean the inside of the reservoir.
E. Fill the reservoir with an approved, high-grade hydraulic oil. Place the pump and motor
assembly (with gasket) on the reservoir, and thread the ten screws. Tighten securely and evenly.
6. Adding Oil To The Reservoir
A. Cylinder(s) must be fully retracted and the power supply disconnected when adding oil to
the reservoir.
B. Clean the entire area around the ller plug before removing the ller plug.
C. Use a clean funnel with lter when adding oil.
D. Use an approved, high-grade hydraulic oil (215 SSU @ 100° F) only.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
7. Sound Reduction
The electrically-powered hydraulic pump operates in the 90-95 dBA range. If further sound reduction is desirable, any of the following options will help reduce the sound level.
A. Install a pressure switch. It shuts the motor off automatically when maximum pressure is
reached (holding cycle).
B. Use a 3450 RPM, 1-1/2 horsepower, 115 VAC, 60 Hz, 1-phase pumping unit.
C. Use a 3450 RPM, 1-1/2 horsepower, 230 VAC, 60 Hz, 3-phase pumping unit.
D. Install casters (two gallon reservoir only) to reduce the noise level.
8. Checking Brushes On Universal Motors
To help prevent premature failure of the armature, check the brushes periodically.
A. Remove the metal brush cover plates.
B. Remove the brush holder caps and brush assemblies
C. The brush assemblies must be replaced if they are 1/8” long or less. See Figure 7.
D. Install brush assemblies, brush holder caps, and metal brush cover plates.
FIGURE 7
REASSEMBLY SPECIFICATIONS
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
NEEDLE BEARING INSTALLATION SPECIFICATIONS
TROUBLESHOOTING GUIDE
WARNING
• To help prevent personal injury, any repair work or troubleshooting must be done by
qualied personnel familiar with this equipment.
• Use the proper gauges and equipment when troubleshooting.
• Depending on the type of pump, it is often best to check for leaks by using a hand pump and applying pressure to the suspect area without the motor running. Watch for leaking oil and follow it back to its source.
• Plug the outlet ports of the pump when checking for leakage to determine if the leakage is in the pump or in the cylinder or tool.
• Refer to the Parts List included with your particular pump when using this troubleshoot­ing guide.
© 2014 SPX CORPORATION
NOTE
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Form No. 102463
Rev. 9 February, 2015
PROBLEM CAUSE SOLUTION
Electric motor does not run 1. Pump not turned ON. 1. Flip toggle switch to “Run”
position.
2. Unit is not plugged in. 2. Plug in unit.
3. No voltage supply. 3. Check line voltage. Check reset button on power panel.
4. Broken lead wire or
4. Replace defective parts.
defective power cord plug.
5. Defective switches. 5. Check switches.
6. Defective motor. 6. Repair or replace motor.
WARNING
7. Defective starter relay. 7. Replace defective parts.
8. Defective remote switch. 8. Repair or replace remote
To help prevent personal in­jury, disconnect power sup­ply before removing cover. Any electrical work should
be performed by a qualied
electrician.
9. Worn brushes 9. Replace brushes
10. Circuit breaker tripped
because total amperage draw too high for existing circuit.
11. Overheated motor (single-
phase motor only). Magnetic starter disengaged (three-phase motor only). Thermal
switch.
10. Add an additional circuit or use alternate circuit.
11. Wait for motor to cool before restarting. Reset thermal protector (Single­ phase motor will reset automatically.)
protector open.
12. Faulty thermal protector
12. Replace
(single-phase motor). Faulty magnetic starter (three-phase motor).
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
PROBLEM CAUSE SOLUTION
Pump is not delivering oil or delivers only enough oil to advance cylinder(s) partially or erratically.
1. Oil level too low. 1. Fill reservoir to 1/2” from top of ller hole with all
cylinders retracted.
2. Loose-tting coupler to
cylinder.
2. Check quick-disconnect couplings to cylinders. Inspect couplers to ensure that they are completely coupled. Occasionally couplers have to be re­ placed because the ball check does not stay open due to wear.
3. Air in system. 3. Bleed the system
4. Air leak in suction line. 4. Check and tighten suction line.
5. Dirt in pump or lter
plugged.
5. Pump lter should be cleaned and, if necessary, pump should be dismantled and all parts inspected and cleaned.
6. Oil is bypassing through the
double-acting cylinder.
6. Be removing the cylinder and capping the hoses, the pump and valve can be checked. Observe if pump holds pressure.
7. Cold oil or oil too heavy
7. Change to a lighter oil.
(Hydraulic oil is of a higher viscosity than necessary).
8. Relief valve or low pressure
8. Adjust as needed.
unloading valve out of adjustment.
9. Reservoir capacity is
too small for the size of the
9. Use smaller cylinder(s) or larger reservoir.
cylinder(s) used.
10. Defective directional valve. 10. Inspect all parts carefully and replace if necessary.
11. Sheared drive shaft key(s). 11. Replace.
12. Motor rotating in wrong
direction.
12. 3450 RPM motor: Refer to electrical schematic on motor. 12,000 RPM motor: Reverse lead wires to brush holders. Air motor: Air line connected into wrong port.
13. Vacuum in reservoir. 13. Check for plugged vent in
ller plug.
14. Low pressure pump worn 14. Remove end cap from low pressure gear pump . Clean pump, and replace worn gears, shifting spool, body or end cap.
© 2014 SPX CORPORATION
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Form No. 102463
Rev. 9 February, 2015
PROBLEM CAUSE SOLUTION
Pump builds pressure but cannot maintain pressure.
1. Check to see if there are any external leaks. If no oil leakage is visible, the problem is internal. If using a double-acting cylinder, remove it from the system to ensure that the leak is not in the cylinder.
2. To test for a leaking control valve, lift the pump from the reservoir but keep the lter in the oil. Remove the drain line to see if the oil is leaking from the valve. If the valve is not leaking, the internal check valve could be leaking. Refer to the note concerning checking for oil leaks at the beginning of this Troubleshooting Guide.
3. Leaking pressure switch seal.
1. Seal leaking pipe ttings with pipe sealant.
2. Clean, reseat or replace ow control valve parts. If the internal check valve(s) are leaking, the pump must be dismantled and the seat areas repaired, poppets replaced, etc.
3. Repair or replace seal.
Pump will not build full pres­sure.
1. Faulty pressure gauge. 1. Calibrate gauge.
2. Check for external leakage. 2. Seal faulty pipe tting with pipe sealant.
3. Check the external
pressure regulator. Check the relief valve setting.
3. Lift the pump from the reservoir, but keep the lter immersed in oil. Note the pressure reading when the relief valve begins to open. If functioning normally, it should start to leak off at relief valve pressure.
4. Look for internal leakage in
double-acting cylinders.
4. Remove the cylinder from the pump. If the pump builds full pressure, the cylinder is defective.
5. Check for leaks in the ow
control valve.
5. Clean and reseat or replace parts.
© 2014 SPX CORPORATION
21
Form No. 102463
Rev. 9 February, 2015
PROBLEM CAUSE SOLUTION
Pump will not build full pres­sure. (Continued)
6. Inspect the pump for internal leakage. Check high pressure pump inlet or outlet ball checks.
6. Same procedure as above, but look for leaks around the entire inner mechanism. If there are no visible leaks, the high pressure pump sub­ assembly may be leaking. Remove all parts. Check the valve head assembly body for any damage to the sea area. Clean and reseat if necessary. Inspect for damage and replace if nec­ essary, then reassemble.
7. Sheared key(s). 7. Replace
8. Inadequate air pressure (air
8. Increase air pressure.
motor only).
9. Shifting spool seat and/or shifting spool poppet
9. Clean and reseat or
replace. (located under high pres­ sure pump assembly) worn.
10. Shifting spool O-ring (located within shifting spool bore) worn or broken.
10. With an O-ring pick,
remove O-ring and backup
washer through low
pressure pump assembly
end. Replace.
Cylinder(s) will not retract. 1. Check the system
pressure; if the pressure is zero, the control valve is releasing pressure and the problem may be in the cylinder(s), mechanical linkage connected to cylinder(s), or quick­ disconnect couplings
1. Check the cylinder for
broken return springs, and
check couplers to ensure
that they are completely
coupled. Occasionally
couplers have to be
replaced because one
check does not stay open
in the coupled position.
2. Defective valve. 2. Check valve operation
and inspect parts. Replace
if necessary.
3. Inadequate air pressure (air
3. Increase air pressure.
motor model only).
Pump delivers excess oil
1. Faulty pressure gauge. 1. Calibrate gauge.
pressure.
2. Relief valve not properly
2. Adjust the relief valve.
set.
Gasoline engine 1. Refer to instruction manual
included with gasoline
engine.
© 2014 SPX CORPORATION
22
Form No. 102463
Rev. 9 February, 2015
POWER TEAM FACILITIES
© 2014 SPX CORPORATION
23
Form No. 102463
Rev. 9 February, 2015
DECLARATION OF INCORPORATION
© 2014 SPX CORPORATION
24
Form No. 102463
Rev. 9 February, 2015
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