Wacker Neuson DPU 2950, Руководство оператора

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T00132GB
10
MAINTENANCE
Service instructions
1. Adjusting the V-belt tension
(First and most important adjustment after the first 5 to 20 hours of operation).
Remove belt guard. Remove nuts situated on the motor V-belt pulley, remove V-belt pulley half. Remove
necessary number of spaces (the removal of one spacer is usually sufficient). Install the removed spacers
on the outside of the V-belt pulley. (If one washer is removed, install it on the outer half of the pulley, of two,
one on the outer and one on the inner V-belt pulley halft, etc.). This V-belt alignment is maintained. Install
spring washers in a way such that the large diameter comes to lie on the motor V-belt pulley. Loosen nuts
and under continual rotation of the motor V-belt pulley tighten nuts alternately.
2. Lubricating the exciter
On delivery of the machine, the exciter is filled with oil. Change oil after every 250 hours of operation, use
approx. 0,75 liter SAE 10 W 40 oil. For this purpose place vibration plate on level ground. Remove drain
plug (red). Correct oil level: Oil should reach the lower flange of the threaded hole.
Hydraulic control
When checking the oil level in the motor and exciter, also check oil level in the centre pole head and top up if
necessary (Top up to mark when centre pole is in vertical position). If there is too much oil in the centre pole
head the reverse motion is hard to engage. If the quantity of oil is insufficient the advance speed is reduced.
We use hydraulic oil Fuchs Renolin MR 520 suitable also for low temperatures in the hydraulic systems as
standard.
Mounting instruction
1. Exciter
When disassembling exciter components, always remove eccentric weights first. When assembling, the ec-
centric weights have to be installed last of all. When installing exciter shafts mind marking of toothed gears.
Assembly of exciter shaft is correct when all eccentric weights point down while piston is at half stroke. Dur-
ing assembly of eccentric weights on exciter shaft, keep shafts blocked to avoid pinching of fingers. Tighten
all screws with the prescribed torque, mind qualities of screws (see screw head).
2. Hydraulic control
Bleed hydraulic system after having topped up with oil, then check oil level again (total quantity required
approx. 1,3 liters).
3. Bleeding
Place handle into vertical position. Slightly pull back control lever and let it go again. Open bleeding screw
on control housing at exciter until no air bubbles appear in oil. Tighten bleeding screw again.
4. Centre pole head
☛
ATTENTION! When disassembling the centre pole head, please mind that the piston is installed un-
der spring tension. When assembling, locate toothed rod in toothed gear in a way such
that the handle is set a 90
o
to the centre pole head when piston is fully extended.
5. Test-run equipment for approx. 5 min. to bleed air from system.