TM 5-2420-230-24-1
TROUBLESHOOTING CHECKLIST
Before proceeding with the following tests, be sure to read the "Diagnosis and Troubleshooting" section of this
manual. Many factors outside of the steering system will affect vehicle steering. Check all mechanical and
external conditions before hydraulic testing. DO NOT REMOVE THE STEERING GEAR!
Date:
Servicing Dealer:
Customer:
Description of Steering Complaint:
Preliminary Information:
Vehicle Model
Mileage
Steering Gear Model
Serial #
Slave Gear Model (if equipped)
Serial #
Pump Manufacturer
Front Axle Weight
Test Information:
DO NOT REMOVE THE STEERING GEAR! Install a pressure and flow tester in series with the pressure line
of the pump as outlined in the "Hydraulic Diagnosis Section" of this manual. Record the following information.
Stabilized Oil Temperature
System Backpressure @ Idle
@ Full Governed RPM
Maximum System Pressure
PSI
Flow @ Idle Back Pressure Only
GPM
Flow @ Idle With 1500psi Load Applied
GPM
M
Flow @ Full Governed RPM With 1500psi Load Applied
GPM
I
S
Static Steering Pressure -
C
Right Turn
PSI
E
Left Turn
PSI
L
L
Static Steering Input Measured at the Steering Wheel Retaining Nut in Inch Pounds -
A
Right Turn
in. lbs.
N
Left Turn
in. lbs.
E
If, after completing the above information you are unsure of your diagnosis, contact the Field Service Depart-
O
ment of the R. H. Sheppard Co. at 717-633-4111.
U
S
K-108