Dust Control System Water Filter Cleaning; Hydraulic System Oil Level Check - Nilfisk RS 850 Manuel D'utilisation

Cleaning of nozzle and fi lter in the rear suction pipe (optional)
15. Loosen the clamp (1, Fig. Y) and separate the rigid part of the rear suction pipe (2) from the hose (3).
16. Operating inside the pipe (2, Fig. Y), with a 0.55 in (14 mm) socket wrench, unscrew the nozzle (4) and remove the fi lter (5)
(check the actual position of the nozzle).
17. Clean the nozzle (4, Fig. Y) and fi lter (5) with compressed air. Remove calcium deposits. If necessary, replace the fi lter (5).
18. Install the fi lter and nozzle in the reverse order of removal.
19. Install the hose (3, Fig. Y) on the rigid part of the rear suction pipe (2) and secure with the clamp (1).

DUST CONTROL SYSTEM WATER FILTER CLEANING

WARNING!
Protect body parts (eyes, hair, hands, etc.) properly, when performing cleaning procedures using compressed
air or water gun.
NOTE
When the fi lter is removed, the water inside the tanks comes out. It is advisable to perform this maintenance procedure
when the tanks are empty.
1. Engage the parking brake (13, Fig. E).
2. Turn the ignition key (24, Fig. D) to OFF position and remove it.
3. Operating over the right side of the rear axle, unscrew the water fi lter cover (1, Fig. Z) and remove it together with the fi lter.
4. Separate the fi lter (2, Fig. Z) from the cover (3), then wash and clean them. If necessary, replace the fi lter.
5. Install the fi lter and the cover.

HYDRAULIC SYSTEM OIL LEVEL CHECK

CAUTION!
This procedure must be performed with the hopper (7, Fig. G) completely lowered.
1. Engage the parking brake (13, Fig. E).
2. Start the engine as shown in the relevant paragraph.
3. Open the left side lower lid (11, Fig. G) by disengaging the fastener (12) with the supplied key.
4. Check that the needle of the effi ciency indicator (1, Fig. AA) of the hydraulic system discharge fi lter (2) is in the green area (3),
otherwise the fi lter (2) must be replaced (see the procedure in the Service Manual).
5. Check that there are no oil leaks in the upper area (4, Fig. AA) of the hydraulic system oil tank, otherwise the tank breather
fi lter (5) must be replaced (see the procedure in the Service Manual).
6. Stop the engine by turning the ignition key (24, Fig. D) to OFF position, then remove it.
7. Using the indicator (6, Fig. AA), check that the oil level in the tank is between the MIN and MAX marks.
8. If necessary, unscrew the plug (7, Fig. AA), remove the fi lter (2) and top up. For the types of oil to be used, see Technical Data
chapter.
NOTE
Top up by using the same type of oil that is in the tank.
9. Install the fi lter (2, Fig. AA) and tighten the plug (7).
10. Close the left side lower lid (11, Fig. G) by engaging the fasteners (12) with the supplied key.
USER MANUAL
RS 850 33014576(4)2008-02 A
ENGLISH
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