pela tools 494628, Manual, Page: 7 / 11

Maintenance
Fill with oil
1. Set the hydraulic pump upright.
2. Place the pump and the piston in the bot
-
tom position.
3. Remove the oil plug.
4. If necessary - top up with hydraulic oil. Fill up
to the bottom edge of the fill hole. Ventilate the
system.
5. Put the oil plug back.
6. Lubricate joints regularly.
Venting the system
Sometimes air bubbles remain inside the pis -
ton, which leads to a reduction in the effect and
the pistons lifting unevenly. Then ventilate this
way:
1. Open the lowering valves and remove the
locking pin and pump pistons.
3. Fill both pump housings with hydraulic oil.
4. Reassemble the springs and pump pis -
tons.
5. Close one of the lowering valves, push down
the pump rod to test the tightness of the pump
valve. The pump rod should not sink. Open the
lowering valve and close the other, try accor -
dingly.
6. Open both lowering valves to push down
both pump rods and fit locking pins.
Oil plug
2. Remove the pump head.
7. Pump up the ramps to the maximum and
lower them completely a few times to vent the
system.