2
Before Use
1.
Verify that the product and application
are compatible, if in doubt call Tech Service:
1-800-MAC-TOOL (622-8665).
2. Before using this product, read the operator's
manual completely and familiarize yourself thoroughly
with the product, its components and recognize the
hazards associated with its use.
3. To familiarize yourself with basic operation, locate
and turn the release valve (handle):
a.
Clockwise until firm resistance is felt to further
turning. This is the ‘
CLOSed
’ release valve
position used to
raise
the saddle.
b.
Counter-clockwise, but no more than 1/2 turn
from the closed position. This is the ‘
OPen
’
release valve position used to
lower
the saddle.
4. With saddle fully lowered, remove the oil filler plug.
Pump 6 to 8 full strokes. This will help release any
pressurized air which may be trapped within the
reservoir. Check oil level.
Fill until oil
nearly
covers
the inner cylinder as seen from the oil filler hole.
Reinstall the oil filler plug.
See page 4, Maintenance
Section for details.
5. Pour a teaspoon of good quality, air tool lubricant
into the air supply inlet of the lift control valve.
Connect to air supply and operate for 3 seconds to
evenly distribute lubricant.
6. This product is equipped with the popular 1/4" NPT
air coupler. When installing a different air coupler of
your choice, ensure that thread tape or compound
is used when servicing connections. To ensure
dependable, trouble free operation an inline air dryer
and oiler is recommended.
7. Ensure that jack rolls freely. Raise and lower the
unloaded saddle throughout the lifting range before
putting into service to ensure the pump operates
smoothly. Replace worn or damaged parts and
assemblies with authorized replacement parts only.
Bleeding / venting Trapped Air
With the release valve in the OPEN position (3b.) and
with saddle fully lowered, locate and remove the oil filler
plug. Pump 6 to 8 full strokes. This will help release
any pressurized air which may be trapped within the
reservoir. Reinstall the oil filler plug.
SAFeTY and GeneRAL
InFORMATIOn
Save these instructions.
For your safety, read,
understand, and follow the information provided with
and on this jack before using. The owner and operator
of this equipment shall have an understanding of this
jack and safe operating procedures before attempting
to use. The owner and operator shall be aware that use
and repair of this product may require special skills and
knowledge. Instructions and safety information shall be
conveyed in the operator's native language before use
of this jack is authorized. If any doubt exists as to the
safe and proper use of this jack, remove from service
immediately.
Inspect before each use.
Do not use if broken, bent,
cracked or damaged parts are noted. Any jack that
appears damaged in any way, or operates abnormally
shall be removed from service immediately. If the jack
has been or suspected to have been subjected to a
shock load (a load dropped suddenly, unexpectedly
upon it), immediately discontinue use until jack has been
checked by a factory authorized service center (contact
distributor or manufacturer for list of authorized service
centers). It is recommended that an annual inspection
be done by qualified personnel. Labels and Operator's
Manuals are available from manufacturer.
!
PRePARATIOn
Assembly
(see Fig. 2, 3)
1. Assemble the 2-piece handle with provided bolt.
2. Insert handle into the handle sleeve. Tighten the
bolt on handle sleeve to prevent accidental removal
of handle while in use.
PROdUCT deSCRIPTIOn
This Air/Lever actuated Hydraulic Service Jack is
designed to lift, but not support, one end of a vehicle.
Immediately
after lifting, loads must be supported by a
pair
of appropriately rated jack stands. It can be pumped
manually or connected to shop air capable of providing
7.8 CFM @ 150 psi (required for rated capacity lifts).
NEVER
use a hydraulic jack as a stand
alone device. After lifting,
immediately
support the lifted vehicle with a
pair
of appropriately
rated jack stands.
NEVER
place
ANY
portion of your
body beneath the vehicle when lifting
OR
lowering!
SPeCIFICATIOnS
Model
Capacity
Jack Size (L x W x H)
Min.
Height
Max.
Height
Saddle
Dia.
Volume of
Hyd. Oil
JS300A
3 Ton
30” x 14 5/8” x 6 3/8”
5 1/4”
19”
5”
200 ml
