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Kurt
Johnson |
Mike
Edwards |
DOOR CAR JACKS
Used By Every FULL-TIME NHRA PRO CAR
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Kurt
Johnson |
Mike
Edwards |
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Dave
Connolly |
Greg
Stanfield |
Jeg
Coughlin |
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Greg
Anderson |
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V.
Gaines |
Ron
Krisher |
Erica
Enders |
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Allen
Johnson |
Jim
Yates |
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Rick
Jones/ Quartermax |
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Tony
Gillig |
Mark
Pawuk |
Larry
Morgan |
Pro Stock Standard Set
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Jacks available in variable lift heights
ProJack Race Car Stands Meets
The NHRA Rule Book Requirements Under The General Regulations Section -
JACKS & JACKSTANDS
No work may be done under any car in the pit area while the car is
supported by only one jack. Additional safety devices such as
jackstands are mandatory to provide additional protection in the
event of jack failure. Failure to observe this rule is grounds for
immediate disqualification. Tube-chassis, Pro Stock-style vehicles
must have cradles/jackstand devices that attach to the frame
(conventional jackstands prohibited) when being worked on and/or
when engine is running in pits with vehicle in a raised position.
Jackstand devices must be constructed as to provide a minimum
ground clearance of 7 inches as measured from the ground to the
outer diameter limit of the rear tires.
HOW
TO MEASURE CARS DIMENSIONS
· Measure center to center front frame rail width. Jack cradles chassis
· Supports rear chassis in front of four link brackets. Measurement usually
same as the front jack, however, rear is adjustable. If it is a ProMod style
car, measure center to center frame rail width in the rear if it is different
from the front.
P/S
DOOR CAR MODEL SET-UP
· After unpacking the front and rear jacks, along with the pump and hoses,
attach and lay out the system with the “T” in the hoses attached
to the pump. The pump should be placed on the same side of the car that the
hydraulic couplers are facing on the jacks (This is generally the left side
of the vehicle).
· Position the rear jack just in front of the “four-link”
cross member on the main frame rails. Make sure jack is centered on the vehicle
so the mid-section of the contact rods on the jack are coming into contact with
the frame rails.
· Position the front jack with the cups centered on the main frame rails
just in back of the radiator.
· Make sure that the vent is open on the pump for proper operation. It
may be left open except while shipping.
Lifting
Car
· After properly setting up jack system, attach air hose to foot pedal
pump (or plug in if electric model).
· Push on the advance mode of the pump to engage jacks into lifting motion.
(This may take a few moments on the initial charge due to the hoses being empty
of hydraulic fluid. The system is self-bleeding as any trapped air is returned
to the pump). The front of the car should lift up first with the rear following.
Continue to push the advance mechanism on the pump until the car is completely
raised and the pump begins to slow down (clearly detectable by sound).
· **NOTE** The first use of the system will require the setting of the
flow control on the pump. When the car is initially raised, the flow control
should be completely closed. After the car is completely raised, do not swing
up arms into place. The release should be engaged with no results. While holding
open the release, slowly open the flow control valve in order to achieve the
desired drop rate of speed. Once set, lock with small set screws located on
the side of the flow control valves. The drop rate will now be consistent each
time the system is used.
· Once the car is completely lifted, raise the locking arms into place.
Release the pressure on the pump in order to lock the arms into place. With
the pressure released, the jacks now become a solid work stand.
Lowering
Car
· Engage pump in order to lift car off of locking arms.
· Clear arms away from locking position and engage release on pump. The
car will drop according to the speed which has been set by the flow controls.
Maintenance
· Lubricate lower base pivot rods periodically with a quality penetrating
lubricant.
· Tighten and inspect nuts and bolts periodically.
· Inspect hoses and fittings for wear and tear and replace as needed.
**WARNING** Extreme caution should be used when operating any jack system. Be
sure that the jacks are securely in the lock position before attempting any
work on the car. Keep hands and body clear of jacks and underneath car unless
locking arms are securely in place. Operate jack system only on a firm level
surface. Lifting capacity of standard dragster jack system in 3,000 lbs. Overload
or careless use may cause damage to jack system or vehicle, destruction of jack
system, or personal injury.
The ProJack lifting system concept is our patented intellectual property. However, there are some chassis builders who feel stealing another persons ideas are justifiable. ProJack Race Car Stands is the original and patented jack that is geometrically correct and the safest jack on the market. They are also used by 90% of the pros in Drag Racing and is quoted that “ProJack provides a total professional look for between round maintenance while being the safest and fastest method of putting your race car in the air.”
Used &/or recommended by leading chassis builders; Jerry Haas Race Cars, Rick Jones RJ Race Cars, Don Ness RaceCraft, McKinney Corp, Brad Hadman, Skinny Kid Race Cars, and many other top builders.
IF YOU WANT TO BE A PRO OR LOOK LIKE A PRO...THEN USE WHAT THE PROS USE!!!!
___________________________________________________________________
2636 W. 78th St. Hialeah,
FL 33016
Toll Free: 800-755-JACK (5225) Direct: (305) 821-2311
Fax: (305) 821-4707
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This site has been created and is maintained by Kim Marjama