Severe Service Schedule for VHD-Series 83
Category C:
Additional Service Points
1 Do the maintenance points as de-
scribed under Category a, A and B.
2 Change standard antifreeze every
4,000 hours. (See page 122 or page
124.)
3 Extended life antifreeze should have
an extender package added at 3,000
hours and then changed at 6,000
hours. (See page 122 or page 124.)
4 Check coolant thermostat function ev-
ery 2,000 hours.
5 Pressure test injectors or adjust height:
•
Volvo D7: Every 12 months or
2,000 hours.
•
Volvo D12: No recommendation.
•
Cummins: Every 21 months or
3,800 hours.
•
Detroit Diesel: Every 21 months
or 3,800 hours
6 Check and adjust valves on the engine:
•
Volvo: Every 12 months or 2,000
hours.
•
Cummins: Every 21 months or
3,800 hours.
•
Detroit Diesel: Every 21 months
or 3,800 hours.
7 Change power steering filter annually.
(See page 143.)