Cat Electric Rope Shovel 295HD/ HR Drive Converter Cabinet Bucyrus Shovel Operation & Maintenance Ma

Page 74

BI619954

Edition 03.2009

6.1

Maintenance

Maintenance schedule

This schedule mentioned below is minimum required & generally based on previous experience. However maintenance intervals and the activities mentioned may change depending on actual site conditions in Shovel vehicle. Code

Interval code

Operating hours

Time period

Activity

VI

Check

500 h

1.5 months

EI

Interval 1

1000 h

2...3 months

Visually check the heat exchanger for pollution, if required, clean.

Read-out the fault memory of the DCU

Check and clean insulators of PTB2 terminals & motor connection terminals on DCC for dirt accumulation.

Clean the heat sink fins of air conditioner from outer side of DCC

Cooling system: Check the liquid level, if required, top up

Cooling system: Cooling medium specimen, analysis.

Check that the seals of cooling system are not leaking

Check the coolant pump: For vibration, noise in operation, damage and leaks

Apply grease (jelly) on door gaskets to prevent adhesion/ sticking of gasket to cabinet

Check air conditioner fans

DC link capacitor: Check the capacitance value

Check the Blower for heat exchanger.

Check DCU fans

Bearings of main fan motor: Replace in qualified workshop

Electric motor of internal cooler (E11): Replace and overhaul in qualified workshop

Replace the gaskets on maintenance cover

I2

I3

I4

2 x I4

Interval 2

Interval 3

Interval 4

2000h

4000 h

8000 h

16000 h

6 months

1 year

2 years

4 years

Visually check the DCC for dust, dirt, any physical damages

Siemens Ltd. A5E01511750J/ 4M-2601-1645240 AC

Shovel 295HD/ HR DCC Operation & Maintenance Manual

74


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