INTRODUCTION
Basic instructions - Hydraulic diagnostic test ports
If equipped, the machine’s hydraulic system pressure can be easily checked from the hydraulic quick disconnect
diagnostic test port(s) located on the right hand side of the machine between the reservoir tank and cab door.
Hydraulic test port configurations
NOTE:
Hydraulic test ports on a mechanical control machine shown in the illustration.
Pilot or mechanical if equipped (three ports)
• Top port — Pump output pressure
• Bottom port — Load sense (LS) pressure
NOTE:
Load sense pressure port not available on ma-
chines with mechanical backhoe controls.
RCPH11TLB003BAD
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• Rear port (attenuator hose)- Pump output pressure, hy-
draulic flow, and bleed air from the system.
RAIL15TLB0003BA
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RAIL15TLB0004BA
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