HYDRAULIC SYSTEM
Drive System – Pressure test/adjust.
Fig.1
To facilitate easy and safe checking and adjusting of the Drive
System Pressure, a Test port is fitted on the Loop Flushing Valve.
If a Test Port is not installed on your machine it is recommended
that one be obtained from the factory, also the 1000 psi. Gauge,
Adaptor, and Hose.
The Test Port replaces a Plug on the Loop Flushing Valve.
CAUTION
To ensure safe and efficient procedures
the correct
equipment must be used. Failure to do so may result in
personal injury and/or equipment damage.
Fig.1
Two persons should carry out this procedure
.
One in the operator’s seat, a second to attach the equip-
ment and adjust the pressure.
Loop Flushing Valve.
(Located under the inner engine cover).
Fig.2/3
•
Remove the plug in the Valve and fit the Test Port.
Remove the
Cap
‘A’.
•
Attach the Gauge
‘B’
and Hose
to the Test Port ‘
C
’.
Fig.2
•
Set the Engine rpm to 1800.
With the machine ‘
stationary
’ the gauge reading should
be 350/375 psi.
•
Engage the Drive ‘
momentarily
’.
The indicated pressure should decrease, to 20/30 psi.
lower than the stationary psi.
Pressure Adjustment.
Fig.4
Pressure is adjusted at the Relief Valve ‘D’ located on the top
side of the Drive Pump.
•
Loosen the Locknut ‘
E
’. Fig.3
•
Using a
6mm
Allen Key turn the Adjuster ‘F’
CW
to
increase
pressure.
•
Turn
CCW
to
decrease
pressure.
•
Retighten the Locknut ‘
E
’.
•
Remove the test equipment. Replace the cap on the
Test Port.
Fig.4
4-04
Summary of Contents for 4000 R Series
Page 2: ......
Page 4: ......
Page 7: ......
Page 8: ......
Page 10: ......
Page 22: ...DECALS 1 12 ...
Page 23: ...DECALS 1 13 ...
Page 24: ...DECALS 1 14 ...
Page 25: ......
Page 26: ...1 16 ...
Page 28: ......
Page 30: ......
Page 34: ...This page left blank 2 04 ...
Page 36: ......
Page 38: ......
Page 42: ......
Page 57: ......
Page 58: ......
Page 59: ......
Page 60: ......
Page 61: ......
Page 62: ...This page left blank 3 22 ...
Page 63: ......
Page 64: ......
Page 67: ......
Page 68: ......
Page 73: ...HYDRAULIC SYSTEM Main Components Layout 4 05 ...
Page 74: ...HYDRAULIC SYSTEM ...
Page 75: ...HYDRAULIC SYSTEM Main Conveyor Hydraulic Layout 4 07 ...
Page 76: ......
Page 77: ......
Page 78: ......
Page 82: ......
Page 84: ......
Page 86: ......
Page 88: ......
Page 90: ......
Page 101: ...ELECTRICAL SYSTEM Inter Connect 5 13 ...
Page 102: ...ELECTRICAL SYSTEM Service Panel Under Cab Mount 5 14 ...
Page 103: ...ELECTRICAL SYSTEM Wiring Schematics 5 15 ...
Page 104: ...ELECTRICAL SYSTEM Wiring Schematics 5 16 ...
Page 105: ...ELECTRICAL SYSTEM Wiring Schematics 5 17 ...
Page 106: ...ELECTRICAL SYSTEM Wiring Schematics 5 18 ...
Page 107: ...ELECTRICAL SYSTEM Wiring Schematics 5 19 ...
Page 108: ......
Page 110: ......
Page 123: ...MAINTENANCE 6 13 ...
Page 126: ...LUBRICATION 6 16 ...
Page 127: ...LUBRICATION 6 17 ...
Page 128: ...LUBRICATION 6 18 ...
Page 130: ......
Page 132: ...AUTO STEER 7 02 ...
Page 133: ...AUTO STEER 7 7 03 ...
Page 136: ......
Page 139: ......
Page 140: ......
Page 141: ......
Page 142: ......
Page 143: ......
Page 144: ......
Page 145: ......
Page 146: ......
Page 147: ......
Page 148: ......
Page 149: ......
Page 150: ......
Page 151: ......
Page 152: ......
Page 153: ......
Page 154: ......
Page 155: ......
Page 156: ......
Page 157: ......
Page 158: ......
Page 159: ......
Page 160: ......
Page 161: ...ENGINE SECTION 9 Caterpillar Engine Operation and Maintenance ...