5
OPERATION
1. Load capacity should be coordinated with boom
extension and legs extension. For model Atd-7484,
do not extend boom extension beyond the marking
that coordinate with the legs extension.
2. Secure engine to chain/sling hook assembly, ensure
load is centered.
3. Follow vehicle service manual recommendations to
remove engine. When ready to remove engine, turn
release valve clockwise until rm. Pump handle until
load is high enough to clear vehicle. (squeeze lift
control valve for air actuated option)
Note: Avoid rolling the loaded engine crane. To help
position an engine stand if necessary, move only across
smooth, level, seamless surfaces.
Before moving ensure the load:
a. is lowered to the lowest practical position, but always
below the center of gravity.
b. is prevented from swinging and inadvertent shift-
ing.
4. Immediately transfer the load to appropriate engine
support device (engine stand).
5. Check to ensure stand is secure before working on
or around.
MAINTENANCE
Important: Use only a good grade hydraulic jack oil.
We recommend Mobil DTE 13M or equivalent. Avoid
mixing different types of uid and NEVER use brake
uid, turbine oil, transmission uid, motor oil or glycerin.
Improper uid can cause premature failure of the jack
and the potential for sudden and immediate loss of
load.
For air actuated units: When used daily, pour a
teaspoon of proper lubricant into the air inlet of the lift
control valve. Connect valve to air supply and squeeze
valve lever to operate. This will evenly distribute lubricant
and properly prepare the hydraulic power unit for use.
Periodically check for leaks at air connections. Use
thread compound to repair. Avoid the use of thread tape
when possible.
Adding oil
1. With ram fully lowered and pump piston fully
depressed, set jack in its upright, level position.
2. Remove oil ller plug and ll until oil is level with the
ller plug hole. Re-install oil ller plug.
Changing oil
For best performance and longest life, replace the
complete uid supply at least once per year.
1. With ram fully lowered and pump piston fully de-
pressed, remove from crane body. With jack in its
upright, level position, remove oil ller plug.
2. Lay the jack on its side and drain the uid into a
suitable container.
Note: Dispose of hydraulic uid in accordance with lo-
cal regulations.
3. Set jack in its level upright position.
4. Fill with oil until just below the rim of the oil ller plug
hole. Re-install ller plug.
Lubrication
A coating of light lubricating oil to pivot points, axles and
hinge will help to prevent rust and assure that wheels,
casters and pump assemblies move freely.
Cleaning
Periodically check the pump piston and ram for signs
of rust or corrosion. Clean as needed and wipe with an
oily cloth.
Note: Never use sandpaper or abrasive material on
these surfaces !
Storage
When not in use, store the crane with pump piston and
ram fully retracted.
! WARNING
To avoid crushing and related injuries:
NEVER work on, under or around a load support-
ed only by engine crane. Immediately transfer
the load to an appropriately rated engine stand.
! SAFETY MESSAGE !
Be sure all tools and personnel are clear before
lowering load. Lift only on areas of the engine as
specied by the vehicle manufacturer.
