400-D HYDRAULIC HAND GUN
4
Operation
Preparing the
400-D Hand Gun for Use
The 400-D Hand Gun is packaged with the Sealant Barrel Cap and
hose assembly separate from the gun. To make the 400-D Hand
Gun operational, all you need to do is load the gun with sealant
and attach the cap and hose assembly. Refer to the
Nordstrom
Sealant Brochure
for information on the sealant required for your
specific valve application.
Loading the 400-D
Hand Gun with Sealant
The 400-D Hand Gun is capable of pumping all viscosities
of valve sealants. The barrel is designed to accept a size “J” sealant
stick (1.50" diameter x 8.75" length). Bulk grade sealants can be
loaded into the gun manually or by using Nordstrom Gun Pak. For
the Gun Pak, insert the heat-sealed end of the bag first.
CAUTION: The 400-D Hand Gun is a hydraulic hand gun
capable of developing high pressures. The following
operating instructions should be read and followed
closely to assure the safe and proper use of the
equipment.
Note:
Numbers in parentheses refer to gun parts, as illustrated on
pages 6 and 7.
1. “Crack” open the By-Pass Valve (12) by turning counter-
clockwise less than one full turn. It should not be
tightened against the By-Pass Stop (14). Backing
out the By-Pass Valve too far will allow air to enter
the hydraulic system of the gun.
2. Remove the Sealant Barrel Cap (26), complete with
hose assembly, using the Handle with Grip (1). The
Handle is detachable and has a hole drilled near one
end. By unscrewing the Handle and placing the hole
over the protruding pin on the Sealant Barrel Cap,
the cap may be easily removed and replaced.
3. Using the Handle as a push rod, return the Floating
Piston (41) to the bottom of the Sealant Barrel (24).
4. Clean and replace the Handle.
5. Close the By-Pass Valve. Do not jam the By-Pass
Valve into the seat, as this may damage the sealing
member.
6. Insert the J-Stick or Gun Pak (heat-sealed end first)
into the Sealant Barrel.
7. Operate the gun until the J-Stick or Gun Pak
protrudes approximately ¼" (6 mm) from the end
of the Sealant Barrel.
8. Replace the Sealant Barrel Cap and tighten snugly
using the Handle.
9. Before attaching the Giant Button Head Coupler
(44) to the valve sealant fitting, operate the gun until
resistance is felt or the gun begins to build pressure
(the hose will stiffen). Continue to pump until the
internal relief valve releases and note the pressure at
which this occurs.
10. Crack open the By-Pass Valve again to relieve pressure
and then close. The 400-D Hand Gun is now ready for
servicing lubricated valves.
Lubricating Valves
with the 400-D Hand Gun
1. Slide the Giant Button Head Coupler (44) over
the button head fitting on the valve to be injected
with sealant.
2. Tighten the By-Pass Valve (12).
3. Begin sealant injection by pumping the Handle
(1). It may take a number of strokes for the gun to
prime itself and inject sealant into the valve.
4. As the valve sealant system becomes full, the gun
should become harder to operate and a drop in pressure
should be visible on the gauge. When the valve is full of
sealant, open the By-Pass Valve and disengage the Giant
Button Head Coupler. (Hydraulic pressure must be removed
from the gun before the coupler can be removed.)
Note:
To retain most of the hydraulic pressure in the gun when
removing from a valve, quickly crack open and close the By-Pass
Valve. This will relieve enough hydraulic pressure to allow for easy
removal of the coupler but maintain enough pressure to keep from
repriming the gun between valves.
CAUTION: Do not continue pumping the gun after the
sealant barrel has been emptied of sealant, as the
Floating Piston Assembly may be damaged or the Gun
Pak bag may be pumped into the hose.
Flow Control
Nordstrom Valves
Flow Control
Nordstrom Valves
