Dolmar PS-7910 User Manual

24

Never work with the chain saw  withoute sufficient chain lubri-

cation. Otherwise the service life of the chain and guide bar 

will be reduced. Before starting work check the oil level in the 

tank and the oil feed.
Check the oil feed rate as described below:
Start the chain saw (see „Starting the engine”).
Hold the running chain saw approx. 6" (15 cm) above a trunk 

or the ground (use an appropriate base).
If the lubrication is sufficient, you will see a light oil trace be-

cause oil will be flung off the sawing device. Pay attention to the 

direction the wind is blowing and avoid unnecessary exposure 

to the oil spray!

Note:
After the saw has been turned off it is normal for residual chain 

oil to drip from the oil feed system, the guide bar and the chain 

for a time. This does not constitute a defect!
Place the saw on a suitable surface.

To ensure troublefree operation of the oil pump the oil guide 

groove at the crank case (2) and the oil inlet bore in the guide 

bar (3) must be cleaned regularly.

Note:
After the saw has been turned off it is normal for residual chain 

oil to drip from the oil feed system, the guide bar and the chain 

for a time. This does not constitute a defect!
Place the saw on a suitable surface.

You can adjust the oil pump feed rate with the adjusting screw    

(1). The adjusting screw is on the bottom side of the housing.
The oil pump comes factory-set to a medium feed rate.
To change the feed quantity use the screwdriver and adjust the 

adjusting screw in the following way:
•  Turn to the right to reduce the feed rate.
•  Turn to the left to increase the feed rate.
Even very small adjustments to the adjusting screw (1) can 

influence the oil flow rate. While working make sure there is 

enough chain oil in the tank. If necessary, add oil.