Dynapac DTR75, Operating Instruction

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Valve clearance:
Intake valve (IN) 0.10 mm (0.004 in)
Exhaust valve (EX) 0.20 mm (0.008 in)
1. Crank the engine, until the exhaust valve (EX) is fully open.
2. Check the valve clearance on the intake valve (IN) with a
feeler gauge (1), adjust if necessary.
3. Crank the engine further, until the intake valve is fully open.
4. Check the valve clearance on the exhaust valve, adjust if
necessary.
1. Loosen screw (3) on the rocker arm.
2. Adjust the screw (2), until the feeler gauge (1) can be
inserted and pulled out with a barely noticeable resistance
after the hexagon nut (3) has been tightened.
1. Install the valve cover with a new seal and tighten the screws
evenly.
2. After a short test run check the valve cover for leaks.
Checking the valve clearance
Fig. 81
Adjusting the valve clearance
Fig. 82
Final work
Fig. 83
Maintenance – Annually
DTR75 91