4.2 Lowering
1. Insert handle into release valve and slowly turn handle
counterclockwise no more than one full turn.
2. Push the handle sleeve down manually if still extended,
to reduce piston exposure to rusting.
5.0 MAINTENANCE
IMPORTANT:
Use
only
transmission or turbine oil. Avoid mixing types of oil. Do not
use brake fluid, alcohol, glycerin, detergent motor oil, or dirty
oil. Improper fluid can cause serious internal damage to the
jack, rendering it inoperative. Use Mobil Oil hydraulic oil
model DTE13M or equivalent.
5.1 Adding Oil
1. With saddle fully lowered and piston depressed, set jack
in its upright level position and remove oil filler plug.
2. Fill until oil is level with filler plug hole. Reinstall oil filler
plug.
5.2 Changing Oil
1. For best performance and longest life, replace the
complete oil supply at least once a year.
2. To drain the oil, remove the filler plug.
3. Lay the jack on its side and allow the oil to run into
suitable drain pan. The oil will run slowly because air
must enter as oil drains out.
Possible Jack Problems
Jack will not lift load.
Jack
will
lift
load,
will not hold.
Jack will not lower
completely
Poor jack lifting. Pump feels
spongy.
Jack will not lift to full
height.
Handle raises by itself when
jack is under load
good
grade
hydraulic
TROUBLE-SHOOTING GUIDE
Possible Causes
1) Release valve not tightly closed
2) Air in hydraulic system
3) Oil level is low in jack
4) Jack is malfunctioning
but
1) Oil level is low in jack
2) Jack is malfunctioning
1) Oil reservoir is over-filled
2) Lubrication of moving parts is
necessary
1) Air in hydraulic system
2) Oil level is low in jack
3) Jack is malfunctioning
1) Air in hydraulic system
2) Oil level is low in jack
1) Air in hydraulic system
4. BE CAREFUL to prevent dirt or foreign matter from
entering the system.
5. Replace with proper oil as described above.
6. Reinstall oil filler plug.
7. Dispose of used hydraulic oil in accordance with local
regulations.
5.3 Lubrication
jack,
Add proper lubrication oil to all pivoting sections every 3
months.
5.4 Rust Prevention
Check ram every 3 months for any sign of rust or corrosion.
Clean as needed and wipe with an oil-saturated cloth.
NOTE: When not in use, always leave the saddle and ram all
the way down.
6.0 TROUBLESHOOTING (SEE TROUBLE-SHOOTING
GUIDE
1) To close or tighten, turn release valve clockwise
2) Release air from system
3) Add oil as required
4) Replace jack
1) Add oil as required
2) Replace jack
1) Drain out some oil
2) Lubricated parts as necessary
1) Release air from system
2) Add oil as required
3) Replace jack
1) Release air from system
2) Add oil as required
1) Release air from system
3
Possible Solutions