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© ITW Inc 2007
shown in fig 2. The curved edge of the
paddle should be at the bottom. Upper
paddle on 60L QMS-434-CE only.
QS-430-CE Direct Drive Agitator—
INSTALLATION into Pressure Feed
Tank (Fig. 9)
1. Follow the pressure relief procedure at
the start of the INSTALLATION section.
2. Unscrew the centre blanking plug from
the tank cover. Clean the sealing surface
around the port.
3. Loosen the propeller screw (56A) and
remove the propeller.
4. Make sure the O ring (65) is fully seated
in the groove in the adaptor (34). Insert
the agitator through the port and screw in
until fully tightened.
5. If required, loosen the screw (34A) in the
adaptor to rotate the motor body to align
the hose connection to the required
position. Re-tighten the screw (34A)
6. Replace the propeller (56) onto the shaft
(54). Make sure the screw is aligned with
the flat on the shaft and tighten screw
(56A).
7. Remove main air supply inlet valve from
the tank regulator and install service tee
(23) in open port.
8. Connect tank air supply inlet valve to
open end port of service tee (23). Install
nipple (20) in open port of service tee.
9. If not already connected, install elbow
(19) in air motor inlet port and upper
nipple (20) in open elbow port. Connect
air adjusting valve (21) to upper nipple.
Connect hose assembly (22) between
lower nipple (20 and air adjusting valve.
PT-427-CE/418-CE & PT-419-CE/428-
CE Agitator—INSTALLATION into
Pressure Feed Tank (Fig.8)
1. The PT-428/PT-419 direct drive Agitator
is designed for the 83C-211-CE and
83Z-211-CE tanks only. This Agitator
would be supplied with the tank and is
not supplied as a retro-fit or upgrade, but
only as a replacement.
2. Follow the pressure relief procedure at
the start of the INSTALLATION section.
3. If replacing the original unit, disconnect
the air supply hose from the air motor,
remove the propeller (56), then un-screw
the large nut (53). The unit will now
withdraw from the tank lid.
4. Re-fit the new unit in the reverse order.
Make sure the nut (53) is fully tightened
with a spanner (1—5/8” AF). Re-fit hoses
air hose.
OPERATION
Failure to operate and maintain these
agitators correctly could result in
premature motor failure and void
warranty.
Before operating any of these agitators
lubricate the air motor by adding 4 of 5
drops of SAE 10 weight oil into the air
fitting
QS-5012-CE Operation (Fig. 5)
1. Before operating the air motor, check the
oil level of the gearbox.
2. Remove the oil fill plug (88) and check
the oil level (see Fig. 3 below).
3. If oil level is low, add 140 weight SAE
motor oil. Replace the plug and tighten to
27Nm (20 ftlbs).
4. Before turning on the air supply, screw in
the air adjusting valve (65) fully. Turn on
the air supply and slowly open up the air
adjusting valve until the desired speed is
reached. A good starting point is 1 rev
per second (60 rpm).
5. Run the agitator continuously whist using
the tank.
6. When the tank is empty, the motor speed
will rise. Stop the motor to avoid un-
necessary high speed running.
QMS-430-CE and PT-428-CE Direct
drive models (Fig. 9)
1. Before turning on the air supply, screw in
the air adjusting valve (21) fully. Turn on
the air supply and slowly open up the air
adjusting valve until the desired speed is
reached. Use a minimum of 4 bar air
pressure. Do not exceed the maximum
of 7 bar.
2. Run the agitator continuously whist using
the tank.
3. When the tank is empty, the motor speed
will rise. Stop the motor to avoid un-
necessary high speed running.
PREVENTATIVE
MAINTENANCE
Pressure Relief Procedure
Before attempting any MAINTENANCE of
agitators onto pressure feed tanks, the tanks
must be relieve of pressure as high pressure
can cause a serious injury. Pressure is
maintained in a pressure tank after the
system has been shut down. Before
attempting removal of fill plug or cover,
pressure must be relieved using the
following steps:
1. Turn off the main air supply to the tank.
2. Close air inlet valve located on tank air
manifold.
3. Bleed off air in the tank by turning the air
relief valve thumb screw counter-
clockwise. Wait until all the air has
escaped through the valve before
removing the pressure tank cover or fill
plug installation.
4. Leave the air relief valve open until you
have reinstalled the cover or fill plug.
QS-5012-CE Preventative
Maintenance
1. Every 2 days, check the oil level as
described in the operation section. Top
up as necessary.
2. After the first 250 hours of operation,
remove the gearbox (see replacement of
parts section) and drain the gearbox oil.
Replace the oil as per the operation
section. Note—do this when the gearbox
is warm as the oil will drain easier.
3. After 6 months or 2500 operating hours,
replace the oil as in 2 above.
All Air Motors
1. Lubricate Air Motor as per Installation
section on page 3.
2. Check exhaust muffler filter every 500
hours. Clean or replace as necessary.
3. If the Air motor starts to run slowly or is
sluggish, flushing the motor with solvent
may restore its performance due to
excessive contamination from oil,
moisture and foreign particles. Use only
Gast #AH255B Flushing Solvent or
equivalent for this.
4. This cleaning operation should only be
carried out in a well ventilated area.
5. Wear eye protection.
6. Do not use combustible solvents for
flushing.
7. Disconnect the airline and muffler. Add
Fig 3
Fig 2
