Volvo VNL 780 Operator's Manual page 427

Clutch Fluid Check
Check the fluid level in the clutch fluid reservoir. The fluid level should be between the level
marks on the reservoir. If fluid needs to be added, use brake fluid, DOT 4.
1 Clutch Fluid Reservoir
2 Windshield Washer Fluid Fill
3 Brake Valve
MAINTENANCE AND LUBRICATION
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