Air Bleeding; Maintenance Reserved To A Professionally Qualified Engineer - Cattini YAK 215/L Bedienungsanleitung

3. Undo the screw, POS. 9 A00547 POS. 9 A00547
4. If, once this screw has been undone, no oil comes out it means the level is too low. Add oil in this case. The level must
be at the height of the small bolt on the side of the tank, under the casing.
5. If oil does come out, let the excess quantity drain off until the right level is reached (see point 4).

AIR BLEEDING

Each time the jack is serviced, removing and refitting parts connected to the tank and motorpump, it is advisable to bleed
off all air. Bleeding phases:
1. The pistons must be moved out completely.
2. Remove the casing and close the cock no.
3. Turn the jack over on to one side, leaving free access to the dowel no.
16
4. Loosen (NEVER unscrew the dowel completely!) the dowel no.
hand.
5. Let all the air out from the dowel and continue until oil starts coming through and then close the dowel.
6. Put the jack back into the working position.
7. Open the cock POS. A A00547 POS. A A00547
8. Move the pistons back in completely and check oil level.
9. Try to operate the jack without any load and if the piston lowers in jerks repeat the procedure at least 2 or 3 times.
MAINTENANCE RESERVED TO A PROFESSIONALLY QUALIFIED
ENGINEER
Having to carry out maintenance or overhauling, use exclusively genuine spare parts to ensure the utmost reliability for the
jack.
PROBLEMS
Solutions
THE MOTOR WILL NOT START, OR IT RUNS BADLY.
- Check that the air supply line is not choked.
- The outside seals fitted on the piston,
KMYAK215/L) and lubricate both the cylinder and the ram.
THE JACK DOES NOT LIFT THE LOAD.
-Check that the tap POS. A A00547 POS. A A00547
- Check the oil level by means of the screw
- There is dirt underneath the valves: remove the casing, close the tap
cylinder is horizontal and the motor pump vertical, loosen the cap
and blow inside to thoroughly clean it. Reassemble and if necessary knock again the bearings
A00423 A00423 , then repeat the bleeding operation illustrated on the previous page. Put the jack back into its normal position
and reopen the tap.
- Check the hydraulic block
drawing which controls opening and closing of the descent valve pos.7 of the A00324 exploded drawing, has not
become rigid, in which case dismantle and grease it.
16
(see DWG 15)
POS. A A00547 POS. A A00547
.
POS. 10 A00423 EXPLODED DRAWING POS. 10 A00423 EXPLODED DRAWING
is open.
POS. 9 A00547 POS. 9 A00547
POS. 3 A00547 POS. 3 A00547 , paying special attention that the piston pos.4 of the A00324 exploded
.
POS. 1 A00346 POS. 1 A00346
POS. 1 A00346 POS. 1 A00346 and move the pistons back in by
are worn. Replace them (kit
on the tank.
POS. A A00547 POS. A A00547
POS.16 A00423 POS.16 A00423 , remove the bearings and springs
on the side of the base. DWG.
, turn the jack over so the
POS.12 AND POS.14 POS.12 AND POS.14
EN