Harbor Freight Tools 66305 - Manual (Page 11)

Page 11 SKU 66305 for technical questions, please call 1-800-444-3353.
uSer-Maintenance
inStructionS
Procedures not specifically
explained in this manual
must be performed only by a
qualified technician.
to preVent
SeriouS injury
froM tooL faiLure:
do not use damaged
equipment. if abnormal noise,
vibration, or leaking air
occurs, have the problem
corrected before further use.
cleaning Maintenance and
Lubrication
note: These procedures are in addition to
the regular checks and maintenance
explained as part of the regular op-
eration of the air-operated tool.
Weekly - pivot point Lubrication
1.
and Safety inspection:
Lubricate the pivot points of the tool,
using white lithium grease. Inspect for
loose fasteners or any damage to the
Lift. Repair immediately or mark “Out
of Service” until repairs are made.
If the Hydraulic Ram fades or fails to
2.
lift you may need to add oil or purge
the Ram.
troubleshooting
possible causes Likely Solutions
Motorcycle Lift does
not lift
Steel Ball (13a) in the Discharge 1.
Valve or the single-way valve of
the Hydraulic Cylinder does not
seat or seal well.
Steel Ball (13a) in the Single-way
2.
valve does not seat or seal well.
Hydraulic Ram may require
3.
purging.
Discharge Valve is open.
4.
Clean or replace these components. 1.
Clean or replace these components. 2.
Purge Ram. See instructions on page 6. 3.
Tighten the discharge valve. 4.
Motorcycle Lift
does not lower
Discharge Valve is not open 1. Check function of Release Linkage Assembly 1.
(54).
Motorcycle Lift
Fades (slowly
lowers on its own)
Leaking Valves or Seals. 1.
Low on oil in system. 2.
Hydraulic Cylinder may require 3.
purging.
Take to qualified repair technician for service 1.
Check oil level. Refill and purge as necessary. 2.
Follow instructions for purging system.
Purge Hydraulic Ram. See instructions on page 6.
3.
Oil leaks from top
rod of Hydraulic
Ram (24).
Ram O-ring (2a or 6a) is worn 1.
out.
Replace the O-ring. 1.
Oil leaks from the
pump and cylinder
O-ring at pump (18a) or Oil Seal 1.
(3a or 10a) is worn out.
Replace the O-ring or Oil Seal. 1.
follow all safety precautions whenever diagnosing or servicing the tool.