THE JACK LIFTS, BUT COMES DOWN UNDER THE LOAD.
- Dismantle the assembly
POS. 2 A00542
POS. 2 A00542
and check that under the bearing
POS.7 A00324
POS.7 A00324
there are no impurities.
After carefully cleaning, readapt the pin
POS.7 A00324
POS.7 A00324
in its seat with a light blow with a hammer. If the load still falls
even after fitting the jack, carry out the following step. - There is dirt underneath the valves: remove the casing, close
the tap
POS. 9 A00542
POS. 9 A00542
, turn the jack over so the cylinder is horizontal and the motor pump vertical, loosen the cap
POS.16 A00423
POS.16 A00423
, remove the bearings and springs and blow inside to thoroughly clean it. Reassemble and if
necessary knock again the bearings
POS.12 AND POS.14 A00423
POS.12 AND POS.14 A00423
, then repeat the bleeding operation illustrated on
the previous page. Put the jack back into its normal position and reopen the tap.
- Completely drain the tank and the cylinder of oil, loosen the cylinder and check the washer
POS. 10 A00337
POS. 10 A00337
. If it is
damaged, replace it. Refit everything being careful not to let the replaced seal fall between cylinder and base. Fill the
oil tank with oil to the required level; operate the jack a couple of times without the load; bleed and then top up the oil
level when the pistons are lowered.
THE RAMS FAIL TO GO BACK IN COMPLETELY EVEN WITH THE CONTROLS IN DESCENT
POSITION.
Check the suction-pump
POS. 22 A00423
POS. 22 A00423
: remove it and clean it thoroughly.
- Check the head,
POS. 19 A00423
POS. 19 A00423
, remove it and clean it thoroughly.
OIL LEAKS FROM THE SILENCER
POS. 3 A00423
POS. 3 A00423
- Check that the pumping element pos. 11 of the A00423 exploded drawing is not scored or damaged. If it is, replace
it.
- Check that the seals,
POS. 5,6,9 A00423
POS. 5,6,9 A00423
are not worn. If they are, replace them.
OIL LEAKS FROM THE SUCTION PUMP
POS. 22 A00423
POS. 22 A00423
1. Check the quantity of oil in the tank, (see the “Oil level check” procedure in the "Maintenance for the end user”
section). If too much oil has been put in the jack, it will stop leaking very soon.
2. Check that the jack has been used observing the conditions listed previously, i.e. horizontally and not slanted. If the
jack has been turned upside down or tipped over, it will stop leaking very soon.
THE PISTONS ARE VERY SLOW TO MOVE UP
- Check that the tap,
POS. 9 A00542
POS. 9 A00542
, located between the tank and motor pump is open.
- If the jack malfunctions when moving up, check the spring
POS. 17 A00423
POS. 17 A00423
.
EN
17
Summary of Contents for YAK 215/N
Page 3: ...Sollevatore Oleopneumatico Modello YAK 215 N IT 3 ...
Page 12: ...Air Hydraulic Jack Model YAK 215 N EN 12 ...
Page 20: ...LUFTHYDRAULISCHE HEBEVORRICHTUNG Modell YAK 215 N DE 20 ...
Page 29: ...Cric Oleopneumatique Modèle YAK 215 N FR 29 ...
Page 38: ...Gato Oleoneumatico Modelo YAK 215 N ES 38 ...
Page 46: ...46 ...
Page 47: ...47 ...
Page 50: ...TAV 1 YAK215 N REV 2 50 ...
Page 51: ...TAV 2 51 ...
Page 52: ...TAV 3 52 ...
Page 53: ...TAV 4 53 ...
Page 54: ...TAV 5 54 ...
Page 55: ...TAV 6 55 ...
Page 56: ...TAV 7 56 ...
Page 57: ......
Page 58: ...58 ...
Page 59: ...1493710991 LAST REVISION NOVEMBER 2016 ...
Page 60: ......