Norco 72300 Manual
MODEL 72300 1/2 TON CAPACITY SINGLE STAGE TRANSMISSION JACK
SETUP • OPERATING • MAINTENANCE INSTRUCTIONS
PROFESSIONAL LIFTING EQUIPMENT
®
BEFORE USING THIS DEVICE, READ THIS MANUAL
COMPLETELY AND THOROUGHLY, UNDERSTAND ITS
OPERATING PROCEDURES, SAFETY WARNINGS AND
MAINTENANCEREQUIREMENTS.FAILURE TODOSOCOULD
CAUSE ACCIDENTS RESULTING IN SERIOUS OR FATAL
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
The use of portable automotive lifting devices is subject to certain
hazards that cannot be prevented by mechanical means, but
only by the exercise of intelligence, care, and common sense. It
is therefore essential to have owners and personnel involved in
the use and operation of equipment who are careful, competent,
trained, and qualied in the safe operation of the equipment and
its proper use. Examples of hazards are dropping, tipping, or
slipping of motor vehicles or their components caused primarily by
improperly securing loads, overloading, off-centered loads, use on
other than hard level surfaces, and using equipment for a purpose
for which it was not designed.
It is the responsibility of the owner to make sure all personnel read
this manual prior to using this device. It is also the responsibility of
the device owner to keep this manual intact and in a convenient
location for all to see and read. If the manual is lost or not legible,
contactNorcoIndustries, Inc. for afreereplacement. If the operator
is not uent in English, the product and safety instructions shall be
read to and discussed with the operator in the operator’s native
language by the purchaser/ owner or his designee, making sure
that the operator comprehends its contents.
WARRANTY
This product is covered by a Limited Lifetime Warranty. For details
see the back cover of Norco’s product catalog.
IMPORTANT: READ THESE INSTRUCTIONS BEFORE OPERATING
WARNING
Adequately support the vehicle before starting repairs.• Consult the in-ground or above-ground lift manufacturer for
the recommended support procedure and under hoist support
stand locating points.
Support the engine with a stand before unbolting the• transmission from the engine.
Inspect the jack before each use. Do not use the jack if it is•
damaged, altered, modied, in poor condition, leaking hydraulic
uid or unstable due to loose or missing hardware. Take
corrective action before using the jack.
Do not use jack beyond its rated capacity. Do not lift or support• the vehicle with this jack.
Use only on a hard level surface.•
Be sure setup is stable and secure. Use this jack only with• adapters and load restraints provided by Norco. Use of this
jack is limited to the removal installation and transportation
(in the lowered position) of transmissions and transfer cases.
Center load on saddle. Consult the vehicle manufacturer for the
transmission’s center of balance. Off-center loads can cause
jack failure and/or loss of load.
No alterations shall be made to this jack and use only with• factory approved adapters.
SETUP
Refer to the exploded view parts drawing for identication, 1.
location and position of parts.
The chains and corresponding chain hardware are provided2.
in order to secure the transmission to the saddle assembly and
containing angles. One end of each chain should be anchored to
a containing angle. The restraint system (chain, chain hardware,
and containing angles) may be adjusted according to the specic
transmission conguration.
Sometimes air gets trapped in the jack during shipment. An3.
air bound hydraulic system feels spongy when pumped and
sometimes the jack will not pump full incremental strokes.
PURGING AIR FROM THE HYDRAULIC SYSTEM
Open the release valve by turning the release valve knob ina. a counterclockwise direction two full turns.
Pump the handle ten full strokes.b. Close the release valve by turning the release valve knob inc. a clockwise direction until tight.
Pump the jack until the ram is extended to maximum height.d. If the condition remains, repeat steps “a” through “d” until alle. air is purged from the system.
Note: Revision letters (A, B, C, D etc.) after model numbers have been omitted as they do not affect the setup,
operating and maintenance instructions of a particular jack unless otherwise noted.
OPERATING INSTRUCTIONS
Lift the vehicle to the desired work height and support the1.
vehicle in accordance with the lift manufacturer’s recommended
support procedure and the warnings given in this manual.
Use an under hoist stand rated greater than the weight of the2.
engine to support the engine before unbolting the transmission
from the engine.
Position the transmission jack directly under the transmission.3.
Turn the release valve knob in a clockwise direction until tight.
Pump the jack to raise the saddle to a height very close to the
center of balance point of the transmission oil pan but do not touch
the transmission.
Adjust the saddle base and containing angles so the ange of 4.
the transmission pan will rest on the top edges of the containing
angles. The containing angles must then be secured to the
saddle by tightening the hex head screws. Now gently raise the
saddle so the containing angles are supporting the transmission
pan ange. Fore and aft saddle tilt adjustments are sometimes
necessary to properly position the transmission on the saddle.
Side to side tilt positioning may be necessary for the same reason
and can be accomplished by activating the side to side tilt handle.
IMPORTANT: Do not put excessive pressure on either tilt
handle to activate the tilt screws. Stop turning the handles
when the threaded trunions or their cast brackets that contain
them come close to contacting the slave trunions or the cast
brackets that contain them.
The restraint chains should be anchored to the containing5.
angles on one side. The loose ends of the chains should be pulled
over the center of balance portion of the transmission and secured
to the two remaining containing angles. The chains should then be
tightened to secure the transmission to the saddle.
Remove the transmission from the engine according to6.
instructions in the vehicle service manual.
Once the transmission has been disconnected from the engine,7.
turn the release valve knob in a counterclockwise direction very
slowly to make sure the jack’s saddle and transmission do not
hang up on any undercar components, wiring, fuel lines, etc. Once
everything is clear continue to lower the jack all the way down.
REPAIR SERVICE
If your Norco product requires service or repair, contact the Norco
Customer Service Department for the location of the nearest Norco
Authorized Service Center.
Norco Industries, Inc.
365 West Victoria St.
Compton, CA 90220
(310) 639-4000 • Fax: (310) 639-7411
www.norcoindustries.com
It will be necessary to provide the NorcoAuthorized Service Center
with a copy of the bill of sale if requesting warranty repair. If the
authorized service center determines your product is eligible for
warranty repair, the repair will be made at no charge and returned
freight prepaid. The cost of non-warrantable service, repair, and
return freight is the customer’s responsibility.
Always store the jack in a well protected area where it will not1.
be exposed to inclement weather, corrosive vapors, abrasive dust,
or any other harmful elements. The jack must be cleaned of water,
snow, sand, or grit before using.
Lubricate moving parts once a month with a general purpose2.
grease.
It should not be necessary to rell or top off the reservoir with 3.
hydraulic uid unless there is an external leak. An external leak
requires immediate repair which must be performed in a dirt-
free environment by qualied hydraulic repair personnel who are
familiar with this equipment. NorcoAuthorized Service Centers are
recommended. IMPORTANT: In order to prevent seal damage
and jack failure, never use alcohol, hydraulic brake uid, or
transmission oil in the jack.
Every jack owner is responsible for keeping the jack label4.
clean and readable. Use a mild soap solution to wash external
surfaces of the jack but not any moving hydraulic components.
Contact Norco Industries for a replacement label if your jack’s label
is unreadable.
Inspect the jack before each use. Do not use the jack if any5.
component is cracked, broken, bent, shows sign of damage, or
leaks hydraulic uid. Do not use the jack if it has loose or missing
hardware or components, or is modied in any way. Take corrective
action before using the jack again.
Do not attempt to make any hydraulic repairs unless you6.
are a qualied hydraulic repair person that is familiar with this
equipment.
PREVENTATIVE MAINTENANCE
72300
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