Autoquip TITAN SCISSOR LIFT TABLE - Manual (Page 26)

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6.3.1.2. Replace Cylinder Seals
1. Remove sealing ring (C) and backup ring (D).
2. Use a bright light to inspect inner walls of barrel. Use a
cylinder hone to remove any apparent nicks or
scratches. Clean and flush the barrel after honing.
3. Inspect ram and seal groove (E) for nicks or scratches
that could affect seal or barrel walls; remove as
necessary.
4. Clean seal groove (E) thoroughly and install new seal
and backup ring. Make sure backup ring is toward open end of cylinder.
6.3.1.3. Cylinder Ram Replacement
1. Clean ram of all foreign materials
2. Liberally lubricate the ram and seal with CLEAN grease or oil.
3. Insert ram carefully back into cylinder taking precaution against pinching or tearing seal ring.
4. Position cylinder foot and reinstall thrust angle clips (B).
5. Reconnect cylinder hose.
6.3.1.4. Placing Cylinder Back Into Service
Loctite PST #567 pipe thread sealant or equivalent is recommended. Do not use Teflon tape. Tape
fragments may cause hydraulic system to malfunction.
1. Check that lift anchors are tight (when used). Check all
pins and other mechanical and hydraulic connections.
2. Restore oil level. See oil recommendations in “Oil
Requirements” section.
3. Turn on electrical power and press “UP” button.
Loosen the bleeder plug at the top end of the ram
casing and operate the pump to remove trapped air
from the ram. When clear oil appears, tighten the plug
and raise the lift slightly to remove the maintenance
locks.
4. Lower lift completely and hold “DOWN” button for 60
seconds to allow air in cylinders to bleed back into
reservoir.
5. Raise lift to 25 – 50% of full travel, then lower and hold
“DOWN” button for an additional 60 seconds. Repeat
procedure 8 – 10 times.
6. Clean oil fill breather cap.