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User and maintenance instructions FlowMaster II rotary driven hydraulic pump Models 85705 and 85705MSO, series “B” CAT branded Date of issue January 2021 Form number 404581 Version...
Contents Explanation of Safety safety signals Read and carefully observe these installation instructions before installing, Explanation of safety signals ..operating or troubleshooting assembly. NOTE Safety ......Assembly must be installed, maintained and Emphasizes useful hints and Description.
(24 V ) “on” and “off” valve. When lubrication cycle has completed, FlowMaster II pump is fully automatic pressure rises in system to actuate pressure when used with a controller and pressure switch. When pressure switch actuates, switch.
Pump assembly Maintenance Outlet check and repair inspection and Refer to manual 404582 for repair bare pump assembly (35) General maintenance (Fig. 2, page 7). • Keep area around pump clean. Clean off Before starting this procedure, refer to filling port area prior to filling reservoir. Troubleshooting, page 11, to determine if Clean area around filler after filling as outlet check valve is cause of failure.
Vent valve service ○ Is sensor body (38) securely NOTE fastened to drum cover (32) Install elbow (24) facing down and rotate approximately 30° toward vent hose to (Fig. IPB 1, page 7). prevent excessive rubbing of hydraulic hose Before starting this procedure, refer to ○...
Fig. 1 85705MSO only All ports are in NPTF. Apply two drops of 242 Loctite, 180° apart. Torque from 30 to 35 ft-lbf (41 to 47 Nm). Mechanical shut-off valve Mechanical shut-off valve automatically shuts off filling of reservoir without power applied to system.
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Fig. 2 18.9 in (479 mm) 22.5° 15 / in (384 mm) 13 / in (352 mm) / in (13 mm) 29.2 in (741 mm)
Troubleshooting Condition Possible cause Corrective action Pump does not operate. No hydraulic power to pump. Turn on or connect hydraulic supply to pump. No pressure on gauge: • Closed supply line shut off valve. Open shut-off valve. • No power to solenoid valve. Correct electrical fault.
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