Bleeding Air From System; Hydraulic Velocity Fuse (Hvf) Replacement - Autoquip P-25-005 Manual De Instalación, Operación Y Servicio

7. Lower lift completely and hold "DOWN" operator control for 60 seconds to allow air in cylinders
to bleed back into reservoir.
8. Raise lift to 25 – 50% of full travel, then lower and hold "DOWN" operator control for an
additional 60 seconds. Repeat procedure 8 – 10 times.
9. Periodically check oil level against fill mark.
10. Clean oil fill breather cap.

6.3.2 Bleeding Air From System

1. Bleed air from system by raising lift to 50% of full travel, then lower completely.
2. Hold "DOWN" operator control for 60 seconds.
3. Repeat procedure 5-6 times. If this does not bleed all air from system, contact Autoquip.
4. Clean up any spilled oil. Dispose of spilled oil in an environmentally safe manner.

6.3.3 Hydraulic Velocity Fuse (HVF) Replacement

i WARNING
Prevent serious injury or death.
Never go under lift platform until load is removed and scissors
mechanism is securely blocked in raised position with maintenance
devices and hydraulic pressure is relieved.
The HVF is attached to elbow fitting in rod port of cylinder. Do not use a
swivel fitting between HVF and cylinder. If HVF is installed improperly, it
will not lock up in the event of a hydraulic line failure.
Velocity fuse is not repairable. Replace velocity fuse if defective.
1. Arrow on hydraulic velocity fuse indicates direction of oil
flow restriction. Hydraulic velocity fuse must be installed
with arrow pointing away from cylinder.
NOTICE
Do not use Teflon tape on hydraulic threaded
connections. Tape fragments may damage hydraulic system.
2. Apply Loctite PST #567 pipe thread sealant or equivalent to threads and install fuse to cylinder
with arrow pointing away from cylinder. Tighten fuse.
3. Fill reservoir to full mark if necessary with proper oil.
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