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

Page 75

BI619954

Edition 03.2009

Code R2

Maintenance

Interval code

Operating hours

Overhaul 1

24000 h

4 x I4

32000 h

R3

Overhaul 2

6.2

48000 h

Time period 6 years

8 years

12 years

Activity •

Replace the coolant

Coolant pump: Replace and overhaul in an authorized workshop

Clean the DCC - inner spaces

Visibly check the power connections / glands for abnormal color

Check the main and auxiliary contacts of the contactors as well as the busbar connections in the DCC

Cooling system: Check all of the hose connections to ensure that they are not leaking and are not porous, if required, replace hoses

Check all of the painted surfaces of the DCC for damage, repair the paint finish

Replace the DCU fan assembly

Maintenance activities Check – VI

No. 1

Component Entire DCC

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

Cross-reference Nil

Interval 1 - EI No. 1

Component Main cooler

Maintenance work Clean

Cross-reference Refer to Chapter 6.3

Interval 2 – I2 No.

Component

Maintenance work

Cross-reference

1

Insulators

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

Nil

2

Air conditioner

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

Refer to Chapter 6.17

Interval 3 – I3 No. 1

Component Cooling system

Maintenance work Check the level of the liquid and if required top up

Cross-reference Refer to Chapter 6.4

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

Shovel 295HD/ HR DCC Operation & Maintenance Manual

75


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