Cat 7MFBHM-48DD Feeder Breaker Operation & Maintenance Manual (1)

BI000970

____________________________________________________ Maintenance Every 6 months hydraulic oil tank

Change the hydraulic fluid in the feeder breaker oil tank (Fig. 62).  Clean all dirt and debris from around the fill cap and drain plug.  Remove the drain plug and allow the oil tank to completely drain.  Clean and reinstall drain plug.  Remove the fill cap and pour 20 gallons (76 L) of oil (Spec. 100-1) through the fill cap strainer to avoid cavitating the pumps with the power fill unit. CAUTION! The oil tank must contain a minimum of 20 gallons ( 76 liters) of oil to operate the power fill function. This is to ensure that the hydraulic pumps are not run dry, causing severe damage to the pump.  Add oil Spec 100-1 as required via the power fill system until fluid is visible in sight glass.  Install fill cap.  Start the machine and allow the hydraulic pump to run in order to purge air from the system.  Shut down the machine and recheck the oil level. Add oil if necessary.

Fig. 62: Hydraulic tank oil level Power fill ball valve Breather vent

Oil level sight glass

Drain plug (under tank)

______________________________________________________________ A6474X338 Rev 0 5.77

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Cat 7MFBHM-48DD Feeder Breaker Operation & Maintenance Manual (1)

Articles inside

Lift cylinder ...................................................................5

Tailpiece tilt cylinder.....................................................5

Tilt cylinder ...................................................................5

Foot cylinder.................................................................5

Breaker bit removal ......................................................5

Crawler track ...............................................................5

Tailpiece installation.....................................................5

Conveyor power unit.....................................................5

Tail shaft ......................................................................5

Crawler assembly ........................................................5

Dual relief valve manifold adjustment............................ 5

Flow control valve adjustment....................................... 5

Head shaft sprockets .................................................... 5

Hydrostatic pump charge pressure adjustment .............5

Secondary valve bank adjustment ................................ 5

Inspection of the feeder .....................................................5

Every 6 months .............................................................5

Under speed sensor calibration .....................................5

Every 3 months .............................................................5

Every 2500 hours...........................................................5

Head shaft .....................................................................5

Major hydraulic components ....................................5

Breaker and breaker power unit assembly ....................5

Conveyor.............................................................................5

Infrared pump motor controls..............................................5

Starter enclosure............................................................5

Control features..............................................................5

Electrical system.................................................................5

Shutdown procedure...........................................................5

“TRAM ONLY” mode starting procedure.............................5

Starter enclosure............................................................5