Product Manual

ManualsBrandsNorTrac ManualsHydraulic Power UnitsDump Trailer Power Unit with 12V DC Motor — For Double-Acting Cylinder, 1.1 Gal. Reservoir

Rev. O 1

Wu xi Deli Hydraulics Co., Ltd

www.wx-dl.com sales@wx-dl.com

Office: +86-510-88551778 Fax:+86-510-88551809 E-mail: service@wx-dl.com

DC Trailer Power Unit Owners Manual

Introduction:

Thank you for choosing a Deli Hydraulics

product. Please read this document in its

entirety before operating the equipment.

Insure the operator is adhering to the

safety precautions at all times.

Failure to follow the safety precautions

could result in severe injury or death.

Always maintain your power source &

power unit to insure trouble fee

operation.

Please consult the factory or a qualified

hydraulic technician before attempting to

repair hydraulic equipment. The

disassembly of a power unit still under

warranty will void the warranty. If you

need assistance please consult the

factory.

Safety

This information is intended for use by a service

technician who is familiar with hydraulic

components & understands the required safety

precautions. Please consult factory for any

questions that may not be answered in this

document.

WARNING:

IF THE PRESSURE RELIEF SETTINGS ARE

TAMPERED WITH THE WARRANTY IS VOID

If you perform service on your own Deli

Hydraulics product you must assume

responsibility for personal injury or property

damage that may result.

Please read full equipment manual before

attempting to operate equipment.

Safety Precautions

• Tampering with relief valve

 Tampering or adjusting the relief valve

will void warranty, and could cause

catastrophic failure which could result in

equipment damage, severe injury or

even death. Adjusting the relief valve

will not increase flow!

• Hydraulic Fittings & Hoses

 Always insure hydraulic lines are not

routed around or across sharp edges

that may cause chafing and damage to

hose.

 Never crack or loosen a hydraulic

connection under pressure. Doing so

can result in a hydraulic injection. For

more information on Hydraulic

 Always follow the manufactures

torque specifications for fittings and

hoses.

Page

Contents

1 Safety

2 Identification

2 Warranty

3 Hydraulic Fluid

3 Maintenance

3 Installation

5 Battery Cable Amp Chart

6 Double Acting Diagrams

7 Single Acting Diagrams

8 Troubleshooting

Wuxi Deli Hydraulics Co., Ltd

Add:No.225 Xitai Road,New district(Meicun),

Wuxi,Chain

Sales hotine:+86-510-88551778

Technical support:+86-510-88551803

Fax: +86-510-88551809

Summary of content (13 pages)

PAGE 1
Wu xi Deli Hydraulics Co., Ltd www.wx-dl.com sales@wx-dl.com Office: +86-510-88551778 Fax:+86-510-88551809 E-mail: service@wx-dl.com DC Trailer Power Unit Owners Manual Page 1 2 2 3 3 3 5 6 7 8 Contents Safety Identification Warranty Hydraulic Fluid Maintenance Installation Battery Cable Amp Chart Double Acting Diagrams Single Acting Diagrams Troubleshooting Introduction: Thank you for choosing a Deli Hydraulics product. Please read this document in its entirety before operating the equipment.
PAGE 2
Warning: Loosening hydraulic lines under pressure can result in catastrophic failure which could result in equipment damage, severe injury or even death. Read OEM manual before attempting to operating power unit Unit Identification: Before contacting factory for assistance please insure you have the model code & serial number available.  Fill in the fields below upon receiving or installing the power unit.  Keep this information on or near the equipment, making it readily available when needed.
PAGE 3
Hydraulic Fluid: Hydraulic fluid selection & regular fluid inspection is very important to increase the life of your hydraulic system. The function of Hydraulic fluid is to transfer power from the gear pump to the actuator, weather it is a hydraulic motor o Cylinder. Selecting the proper fluid viscosity is very important. Selecting a fluid that is to thin may not lubricate the gear pump properly; causing premature pump failure.
PAGE 4
2. Mounting All Deli YBZ series DC power units utilize the same bolt pattern-3/8-16 x ½” deep, the holes are 3.25 inches apart Torque mounting bolts to 25 ft-lbs-Steel reservoirs larger than 6 liters must be mounted using the support tab/tabs located at the end of the reservoir opposite the DC motor. Some poly reservoirs may require a support brackets depending the application. Please consult Deli Hydraulics for reconditions.    4.
PAGE 5
6. Startup Procedure   Double check all electrical & hydraulic connections Run power unit momentarily ensuring the pump is priming & the load has started to move.  If load doesn’t move after a few tries reference troubleshooting section – pump not priming  Check voltage drop  Connect a volt meter to the power unit not the battery.  Run power unit momentarily the voltage should not drop below 11.4 volts with a full charged battery.
PAGE 6
Double Acting Schematic Rev.
PAGE 7
Single Acting Schematic Rev.
PAGE 8
Troubleshooting Safety Precautions Safety This information is intended for use by a service technician who is familiar with hydraulic components & understands the required safety precautions. Please consult factory for any questions that may not be answered in this document. • Tampering with relief valve  Tampering or adjusting the relief valve will void warranty, and could cause catastrophic failure which could result in equipment damage, severe injury or even death.
PAGE 9
Symptoms System Inoperative Symptoms Possible Cause Correction Special Notes Dead or Low Battery Load test battery Charge or replace battery Poor Ground Ground battery directly to DC motor Use jumper cables to jump ground only Dirty Contacts in Hand Control Clean contact in hand control with eraser Cleaning contacts with abrasive will cause frequent failure Corrosion on Battery Terminals Start Solenoid Failure Inspect battery cables & clean battery terminals Jump Start Solenoid Use of diele
PAGE 10
Ensure valve is shifting (use dipstick push on valve spool to shift valve. Look through cross drilled holes between o-rings insuring valve is shifting) Pump Not Priming *Remove check valve & activate motor momentarily to prime.
PAGE 11
Bent stem on solenoid valve Debris in screen of load holding valve Replace valve if stem is bent Load holding valve is below fluid level. Removing this valve will partially drain reservoir. Remove flow control valve & inspect valve for debris. Top of valve is threaded, use 1/4-20 bolt to remove flow control valve.
PAGE 12
Clean contact in hand control with eraser Debris in screen of load holding valve (motor would be running and bypassing over relief valve) Remove load holding valve. Inspect screen & valve for debris. (DO NOT REMOVE VALVE FOR INSPECTION IF SYSTEM IS UNDER PRESSURE) Use dipstick on power unit to manually shift the valve. This is accomplished by inserting the dipstick in the nose of the valve and applying pressure. Replace valve if it doesn't shift.
PAGE 13
Dead or Low Battery Load test battery Charge or replace battery Poor Ground Ground battery directly to DC motor Use jumper cables to jump ground only Replace valve if stem is bent Check for bent valve stem Directional valve not completely shifting** Unit Struggles to Lift Load Ensure valve is shifting (use dipstick push on valve spool to shift valve.