Chock the vehicle before beginning any work. Adhere to all safety guidelines outlined in the steering gear service manuals or from your vehicle manufacturer. Before proceeding with the following tests, check all mechanical and external conditions before hydraulic testing. Do not remove the steering gear or pump until hydraulic tests are completed and an authorized number has been received from Sheppard.
Sheppard Returned Goods Authorization Number
Date
MM slash DD slash YYYY
Dealer Name & Location
Dealer Contact Name
Contact Phone Number
Servicing Tech Name
Email Address
Description of Steering Complaint
Vehicle Model
Mileage
VIN
Engine Model
Vehicle Application
Steering Gear Model
Serial No.
Slave Gear Model (if equipped)
Serial No.
Pump Manufacturer
Pump Part #
Front Axle Weight Rating
Front Axle Manufacturer
HYDRAULIC TESTS:

Refer to RH Sheppard service information available on line and in the Sheppard® steering gear Service Manuals. Do not remove the steering gear! Install a pressure and flow tester in the pressure line from the pump to the gear as outlined in the Diagnosis and Troubleshooting Section. Record the following information:
Engine Idle RPM
Engine Max RPM
Oil Temperature

Degrees F (Tests should be run at about 180F)
System Backpressure @ Idle

PSI
Backpressure @ Max RPM

PSI
Maximum System Pressure (Pump Relief Setting) at idle

PSI
at Max RPM

PSI
Flow @ Idle with Backpressure Only

GPM
Flow @ Max RPM Backpressure Only

GPM
Flow @ Idle With 1500 PSI Load Applied

GPM
Flow @ Max RPM With 1500 PSI Load Applied

GPM
Does Steering Gear Stay in Pressure when the Steering Wheel is released?
- YES
- NO
Static Steer Turning Pressure RIGHT Turn

PSI
LEFT Turn

PSI
Relief Plunger Trip Pressure RIGHT Turn

PSI
Pressure Drops Down to

PSI
Relief Plunger Trip Pressure LEFT Turn

PSI
Pressure Drops Down to

PSI
Steering Gear Internal Leakage RIGHT Turn

PSI
GPM

GPM
Steering Gear Internal Leakage LEFT Turn

PSI
GPM

GPM
Static Steer Turning Input Effort RIGHT Turn

In. Lbs
LEFT Turn

In. Lbs

Sheppard Service Bulletins and Manuals

Troubleshooting Checklist

HYDRAULIC TESTS: