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

Page 60

BI000970

Operation _______________________________________________________ Controls and indicators - other locations The following controls and indicators are located as described throughout the machine. foot cylinder locking pin

There is a mechanical locking pin on each foot cylinder (Fig. 21) that must be installed after the feeder is set in the dump position and the foot is planted. The locking pin will hold the cylinder in the extended position in the event that the foot cylinder counterbalance valve fails or is removed. Remove the pin before attempting to retract the cylinder. Fig. 21: Foot cylinder mechanical locking pin

Locking pin storage tube

power fill ball valve

The power fill ball valve (Fig. 22) is located on the hydraulic oil tank on the left side of the machine and is used to open the hydraulic flow to the power fill pump. To operate the power fill, the ball valve must be opened, handle in line with the hydraulic line. Then the control handle on the primary valve bank (6th handle from the operator’s left is moved to the “POWER FILL” position (handle pushed forward). To deenergize the power fill pump, move the control lever to the centered position and turn ball valve handle to closed position. CAUTION! The “POWER FILL/AUX VB” lever is the only lever on the primary valve bank that does not spring return to neutral when released. When the fill operation is complete, the lever must be manually returned to the neutral position. Failure to return the lever to neutral will result in the machine overheating.

hydraulic oil level sight glass

The hydraulic oil level sight glass (Fig. 22) is located on the hydraulic oil tank on the left side of the machine. The oil level should not be allowed to drop below the bottom of the sight glass.

_________________________________________________________________ 5.16 Bucyrus – Model 7MFBHM-48DD Feeder Breaker


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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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