Komatsu WA100M-7, Operation And Maintenance Manual

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5.8 Maintenance procedure
Maintenance Maintenance every 4000 service hours
WA80M-7, WA100M-7 – VENAM03001
5-73
5.8.12 Maintenance every 4000 service hours
Also perform all maintenance tasks scheduled to be carried out
every 10, 50, 100, 250, 500, 1000, and 2000 service hours.
Fuel and coolant hoses – checking, replacing/renewing if required
Have the fuel and coolant hoses checked and replaced, if
required, at a Komatsu workshop.
Water pump – checking
Have the water pump checked in a Komatsu workshop
Checking the clamp of the high-pressure line is firmly seated and checking for
embrittlement of the rubber
Perform a visual and manual check to ensure that the rubber
between the feed pump and common rail has not undergone
embrittlement at the holding clamps of the high-pressure line, and
that the screws (2 positions) are not loose. Renew the parts in
question if there are any problems. In such a case, contact your
Komatsu workshop and ask for it to be renewed.