TEST NO. 6: Checking Steering Circuit Working Pressure or Relief Pressure
WORKING Pressure Check:
1. Make sure hydraulic oil is at normal operating
t
emperature by operating machine for approximately 10
mines.
2. Lower cutting units, engage parking brake and stop
the engine.
3. Remove access cover from in front of auxiliary pump.
4. Install a 5000 PSI gauge onto steering quick discon-
nect fitting.
5. Operate machine while monitoring gauge.
Figure 17
RANGE OF TESTER READINGS 0 - 1300 PSI.
1. Steering circuit test port (S/N 39999 & below)
RELIEF Pressure Check:
6. With engine running, turn the steering wheel until
heavy resistance is felt indicating that the cylinder has
reached maximum stroke.
7. Momentarily hold steering wheel against resistance
and r
ead gauge.
TESTER READING TO BE 1200 ± 100 PSI.
Figure 17A
1. Steering circuit test port (S/N 40001 & UP)
1
1
Reelmaster
®
335-D Page 4 - 29
Rev. A
Testing
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