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

Page 185

BI000970

________________________________________ Replacement of wear parts How to remove the conveyor power unit (Fig. 94) 1. Turn the main circuit breaker on the feeder breaker to the “OFF” position. 2. Lock and tag out the power to the feeder breaker at the main power center. Follow all Federal, State, and mine rules. WARNING! Before performing maintenance on the machine, the circuit breaker must be in the “OFF” position and the power should be disconnected at the main power source. Electrical shock and accidental machine movement can cause serious injuries or even death to you or the maintenance person. 3. Remove the covers. 4. Attach an appropriate lifting device to the power unit. Take up the slack in the lifting device so that the power unit is supported and wont’ tilt and fall when unbolted from the frame. WARNING! You could be seriously injured or even killed by falling loads. Observe the safe working load limits of lifting or devices and keep a safe distance from suspended loads. 5. Disconnect, tag, and cap all hydraulic hoses. 6. Disconnect grease lines to conveyor electric motor. 7. Remove access cover on junction box of conveyor and motor and remove the cable leads from the motor leads. 8. Reinstall junction box cover. 9. Remove the four bolts that secure the motor to the frame. 10. Lift power unit assembly from machine. WARNING! You could be seriously injured or even killed by falling loads. Observe the safe working load limits of lifting or devices and keep a safe distance from suspended loads.

______________________________________________________________ A6474X338 Rev 0 5.141


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

2min
pages 189-190

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

1min
pages 191-192

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

1min
pages 187-188

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

2min
pages 185-186

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

1min
page 178

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

3min
pages 152-154

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

4min
pages 179-182

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

8min
pages 171-177

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

5min
pages 144-148

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

7min
pages 155-162

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

2min
pages 130-132

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

1min
pages 135-136

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

4min
pages 141-143

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

2min
pages 125-127

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

1min
pages 133-134

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

1min
page 111

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

1min
pages 109-110

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

1min
pages 121-122

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

2min
pages 105-107

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

1min
page 108

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

1min
page 83

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

4min
pages 76-80

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

5min
pages 85-86

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

1min
page 64

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

2min
pages 65-66

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

1min
pages 58-59

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

1min
page 60

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

2min
page 67

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

1min
page 63

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

1min
page 62

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

6min
pages 68-74
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