Maintenance – Annually 8.8.2 Checking, adjusting the valve clearance Perform this maintenance work at the latest after 250 operating hours
NOTICE! Danger of engine damage! We recommend to have this work carried out by trained personnel or our after sales service. – Preparations
Before checking the valve clearance let the engine cool down.
Protective equipment: n Working clothes n Protective gloves 1.
Park the machine in secured condition Ä Chapter 6.5 ‘Parking the machine in secured condition’ on page 61.
2.
Let the engine cool down to 20 °C (68 °F).
3.
Unscrew the fastening screws (1).
4.
Remove valve cover (2) with seal (3).
5.
Set the piston to the top dead centre position of the compression stroke.
Fig. 83
For this purpose align the alignment mark (2) on the starter disc to the top bore (1).
Fig. 84
82
DRP15X
