Wacker Neuson DPU 2950, Operator'S Manual

T00136GB

11

MOTOR

Starting operating

1. Motor

Check oil level, top up with oil if necessary, use HD-brand oil SAE 10 W 40. Do not change from one brand to
the other. Top up with oil to upper mark of dip stick (1,2 l).

2. Oil bath air filter

a) Before starting operation fill with oil mark in oil pot.
b) Clean oil bath air filter when working under very dusty conditions. Rinse filter in fuel, shake it carefully and

let it drip dry for approx. 15 minutes. Top up with oil.

3. Maintenance

Motor: First oil change after 25 hours of operation, thereafter, after every 150 hours of operation:
a) Clean oil bath air filter.
b) Check valve clearances adjust if necessary when motor is cold, see “Information regarding the motor”.
c) Replace fuel filter. When installing new filter make sure that the direction of flow of the new filter is correct,

(see arrow).

4. Starting the motor

5. Stopping the motor

Do not stop motor while under full load. Reduce lod first and let it idle for a short while, then stop motor by
means of speed lever.

Instructions regarding the motor

1. Adjusting the valve clearance

The valve clearance should be 0,1 mm when the motor is cold. To adjust clearance when motor is cold, pro-
ceed as follows:

a) Place decompression lever downwards in vertical position. Remove cylinder head cover, turn motor in di-

rection of rotation until you feel resistance of compression.

b) Check valve clearance - between rocker arm and valve stem. Use feeler gauge, thickness 0,1 mm.
c) If valve clearance is not correct, loosen hexagon nut. Use screw driver to adjust setting screw such that

after adjusting the nut, the feeler gauge can be pulled through between the rocker arm and the valve stem.
Slight resistance should be felt when doing so.

2. Adjusting the decompression device

The decompression device is to be adjusted if the motor is not decompressed when the decompression lever

is in position 1 (approx 45

o

to the left or right from its vertical downward position). To adjust decompression

proceed as follows:

a) Remove cylinder head cover.
b) Turn motor in direction of rotation until you fee resistance of compression (same position as to adjust valve

clearance).

c) Turn decompression lever into direction of rotation. Turn is by approx. 60

o

 (until it locks in position).

d) Loosen locking nut (M 6) and setting screw on rocker arm until the latter can be moved.
e) Turn setting screw to the right until rocker arm touches the valve stem.

f) In this position continue to turn setting screw by an additional 1/4 of a turn (90

o

). Lock setting screw by tig-

htening the nut.