©Copyright Task Force Tips, Inc. 2010-2013
LIA-500 June 13, 2013 Rev04
5
4.0 INSTALLATION
4.1 CHANGING HANDWHEEL SIDE
The handwheel can be switched to the opposite side of the gearbox
for convenience or if it interferes with other equipment.
To move the handwheel to the opposite side:
1. Remove the retaining ring on the end of the shaft.
2. Pull the shaft out of the gear box.
3. As the shaft is withdrawn, grasp the small key on the shaft so
it does not get lost.
4. Remove and switch the two plastic bushings that come out of
the sides of the gearbox. The bushing with the large hole is
installed on the same side as the handwheel.
5. Apply a small dab of grease to the key and insert it into slot
on the shaft.
5) SMALL BUSHING
1) RETAINING
RING
4) LARGE BUSHING
3) KEY
2) SHAFT ASSEMBLY
6. Look through the gear box and note approximate position of the keyway in the worm inside the gearbox. Slide the shaft into the
gearbox on the opposite side of the gearbox wit the key oriented the same as the keyway. Rotate the shaft until the key fi nds
the keyway and continue to slide the shaft until the hex fl ats protrude from the small bushing. The retaining groove should be
exposed near the hex fl ats.
7. Reinstall the retaining ring. Do not over expand the retaining ring.
4.2 CHANGING OFFSET OF CRANK HANDLE
REINSTALL CRANK IN THIS HOLE
IF SHORTER SWING IS DESIRED
When equipped with a crank handle, two offset positions are
available to adjust the swing radius of the crank and knob as
shown in the fi gure below. The longer offset position offers reduced
effort to operate the valve. The shorter offset is available to avoid
interference with other equipment. To change the offset, remove
the two 1/4-20 x 1/2” button head cap screws from crank. Place
crank in desired position and replace screws.
4.3 STORZ SUCTION GASKET REQUEST
If your application of this product requires drafting, you may need a suction gasket.
Please call 1-800-348-2686 to receive a free suction gasket by mail.
Part Numbers: 4” Storz- item #A4216, 5” Storz – item #A4221
5.0 USE
5.1 VALVE POSITION INDICATOR
To open the valve turn the handwheel or crank until the valve position indicator says “OPEN”. To close the valve turn the valve
handwheel or crank the opposite way until the valve position indicator says “CLOSED”.
5.2 AIR VENT AND WATER DRAIN
DANGER
Loss of prime can interrupt water fl ow and cause injury or death. Always bleed out air with air
vent/drain to prevent possible loss of prime.
This device may be equipped with an air vent/drain which will allow the air to escape from the valve when the hose is charged. The
air vent/drain is opened by turning the knob counter-clockwise and closed by turning it clockwise.
To drain the water out of the valve after use, open the air vent/drain. A ½” Diameter tube may be used to direct the drained water
away from the device.
5.3 PRESSURE RELIEF VALVE
WARNING
Do not leave the pressure relief valve in the OFF position. The pressure relief valve is disabled
in the OFF position and offers no protection against over pressurization. The OFF position may
be used for controlled pump testing but should not be used for service conditions. Exercise
great care to avoid water hammer or other pressure spikes when the pressure relief valve is in
the OFF position.
WARNING
The Pressure Relief Valve may be damaged if frozen while containing signifi cant amounts of
water. Such damage may to diffi cult to detect visually and can lead to possible injury or death.
Any time the Pressure Relief Valve is subject to possible damage due to freezing, it must be
hydrostatically tested by qualifi ed personnel before being considered safe for use.
LDH valved appliances may be equipped with a pressure relief valve that can be set to any pressure between 90 and 300 psi. Its
function is to protect the pump and supply hose from excess pressure. A piece of hose or tubing may be mounted on the round spout
to direct water coming out of the relief valve away from the device. The relief valve may be mounted with its opening facing the front,
back, right, or left. To change the orientation of the relief valve, remove the four 7/16” bolts on the corners of the relief valve fl ange,
orient the valve in the desired position, and replace the bolts. Use thread-locking compound on the threads of the bolts to prevent
them from vibrating loose.
See
LIA-202
Pressure Relief Valve Instructions for Safe Operation and Maintenance.