AC Hydraulic VAS6931 Manual De Instrucciones página 5

VAS6931 TELESCOPIC TRANSMISSION JACK
GB
WARNINGS -
safe usage instructions
1. Study, understand and follow all instructions before
operating this jack.
2. The use of this jack is limited to removal, instaltion,
and transportation in its lowest position of engine,
gearbox and similar.
3. Do not exceed rated capacity of jack and accessory.
4. Be sure that the vehicle is appropriately supported
and chocked before starting repairs.
5. Use only on hard level surfaces.
6. The load's gravity must be placed centrally, making
sure that the load cannot drop or slide. Off centre
loading may result in a tilting jack!
7. The load must be fully lowered and secured by
straps or similar before transporting.
8. Only use the transmission jack with adapter
(9086949). The adapter must be secured by screw
(0200480).
9. Only original accessories and spare parts may be
used. No alterations may be made to this jack.
10. Failure to observe these warnings may result in
personal injury and/or property damage.
11. Please refer to separate part about the adjustable
transmission saddle at the back of this manual.
Assembly:
1. For safety reasons we recommend to have assi-
stance for lifting and assembly.
2. Carefully lift the hydraulic unit with leg from the box
and place it lying on the side (watch out not to
break plastic cover 9086660) with the pedals
upside (fig. 1).
3. Mount wheels on legs with screw, disc and nut and
tighten to a torque setting of 80 Nm (fig. 2).
4. Mount a plastic cover in each leg.
5. Mount the leg above the pedals with two screws
0200374 (6 mm unbraco) and tighten to a torque
setting of 40 Nm (fig. 3). The mount screw
0263000 (Tx 30) and tighten to 8 Nm.
6. Then raise the hydraulic unit and support the cylin
der bottom (fig. 4).
7. Mount the 3 remaining legs under the bottom (fig. 4)
with screws M10 and discs and tighten to a torque
setting of 40 Nm.
8. The oil reservoir is plugged for transportation in
order to avoid oil spillage: Remove the plug from
gland (0249300) under the bottom (pull the plug
while pushing the red ring. A little oil spillage from
the fitting is normal), and mount the loose air hose
instead (fig. 5).
9. Mount an adequate air fitting in gland 0250600 (1/4"
WRG) and connect clean and dry air supply, max 10
bar/145 psi.
10. Now verify that there is no air in the hydraulic sy-
stem: pump the cylinder ¾ up until app. half the
upper ram is exposed, and then push down on
the ram. If the ram bounces you need to bleed the
hydraulic system as described in Troubleshooting,
item 3.
11. Mount and secure (tighten screw 0214500) the
saddle.
Operation:
Quick approach: Step on quick approach pedal 7002507
until the saddle is close to the load.
Lifting: Activate pedal 9086855 up and down, using full
strokes.
(translation of original text)
Lowering: Carefully step on release pedal 9086840. The
release is spring activated and closes again automatically.
Transport: The load must be fully lowered and se-cured
by straps or similar before transporting.
Noise emission: The A-weighted emission sound pres-
sure level does not exceed 80 db(A).
Maintenance:
Maintenance and repair must always be carried out by
qualified personnel. Remove the air hose before repair.
Cleaning: Never use high-pressure cleaners, steam jets
or degreasing agents for cleaning. If used how-ever, me-
chanical parts must be lubricated afterwards.
Protect the lifting cylinder against paint and sticky rust
preventive.
Daily: Inspect the jack for damages.
Monthly: Lubricate all moving parts with a few drops of
oil. Inspect for unusual wear and tear.
Oil: Check that the oil level is up to lower edge of hole for
filling plug (0244800) with the cylinder fully down.
Quantity of oil: 3.5 l. Any good hydraulic oil of viscosity
of ISO VG15 can be used.
NEVER USE BRAKE FLUID!
Safety Inspection:
According to national legislation – at least once a year
– jack and lifting saddle must be inspected by a profes-
sional: damages, wear and tear, tightening of screws and
nuts, lifting saddle, legs and weels for fractures cylinder
and pump unit for leaks and adjustment of the safety
valve. Furthermore all safety labels must be checked to
ensure that they are legible.
Troubleshooting:
1. The jack does not lift to maximum position but the
pump retains the pressure: verify oil level.
2. The load is dropping: verify release valve closes
properly.
3. The load moves in jerks due to air in the system:
a. Use quick approach or pump until both middle
cylinders are fully extended (fig. 6). Then remove the
saddle.
b. Dismount bleeding screw 0255100 through
centre hole in bushing 9086949 (6.1).
c. Loosen allen screw (0200480) and remove the
bushing (6.2 + 6.3 + 6.4).
d. Release (6.5) and lower the piston rod
9086610 until fully down.
e. Keep the rod down by hand (6.6) and pump slowly
using the pedal (6.7), until pure oil emerges.
Remount and tighten the bleeding screw slightly.
f. Pump again until app. 100 mm of the rod is free,
remount the bushing and secure it with allen screw
(0200480).
g. Tighten bleeding screw again.
4. The hydraulic unit is leaking: exchange worn seals
with repair kit.
Spare parts:
Replace worn or broken parts with approved parts sup-
plied by the manufacturer only. Not all major parts may be
available following discontinuation of a model.
Disposal:
Oil must be drained off and disposed of in accordance
with environmental legislation.
We recommend all parts to be recycled in accordance
with environmental legislation.