POWER GUN SUCTION BLAST TOOLS
Page 9
© 2018 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 24189, Rev. C 06/18
6.3.3
The recommended method for removing the air
jet from the gun is with a strap wrench or similar tool that
will not damage the outside surface of the jet. If a
suitable wrench is not available use a pipe wrench or
slip-joint plier on the recess of the jet.
If the jet is worn
and needs to be replaced, it does not matter if the
surfaces are damaged upon removal.
6.3.4
While the jet is removed, inspect the gun seat
for wear or damage. Replace as needed.
Dry-blast jet shown for reference.
Figure
13
6.3.5
Apply breakaway sealant such as Loctite 243 to
the air-jet threads and while pulling the gun’s trigger,
thread the jet fully into the gun until it bottoms-out. Snug
hand-tight is adequate. Refer to the sealant’s directions
and allow the sealant to cure before putting the gun into
service.
6.4.
Air Jet, H2O Model
Refer to Section 6.3 to service the dry blast jet.
NOTICE
When handling the
H2O
gun be careful not to
apply force pressure to the water fittings and
valve. Applying force on the fittings can break
the water jacket fitting.
NOTE: Breakaway thread sealant is used on the
threads between the air jet and water jacket and
between the water jacket and gun. The sealant
prevents parts from rotating out of alignment during
operation. When removing the jet, use a strap
wrench or similar wrench that will not damage the
shaded areas shown in Figure 13.
6.4.1
Separate the air jet from the mixing chamber.
Use a 2.5 mm hex key to loosen the three setscrews
holding the jet to the mixing chamber and while twisting
the jet to loosen it, pull out to remove it from the chamber.
6.4.2
Replace the air jet when wear reaches the
orifice and affects the overall length. New air-jet orifices
are 1/4" ID and extend approximately 1-5/16" from the
jet body.
NOTICE
When removing and installing an air jet, do not
put a wrench on the shaded areas shown in
Figure 13. The jet is a slip fit into the mixing
chamber, gouges will interfere with the fit.
6.4.3
The recommended method for removing the air
jet from the water jacket is with a strap wrench or similar
tool that will not damage the outside surface of the jet. If
a suitable wrench is not available use a pipe wrench or
slip-joint plier on the recess of the jet.
If the jet is worn
and needs to be replaced, it does not matter if the
surfaces are damaged upon removal.
6.4.4
Remove the water disc and washer from the
water jacket. Inspect all items and replace any that are
worn.
6.4.5
While the jet is removed, remove the water
jacket from the gun for inspection and inspect the gun
seat for wear or damage. Replace as needed.
6.4.6
Make sure the jet slots are facing away from the
water jacket, as shown in Figure 14, and insert the
washer and waterjet disc into the jacket.
Figure
14
6.4.7
Apply breakaway sealant to the first few
threads on the jet (excessive sealant could plug the
slots in the waterjet disc) and screw the jet into the
water jacket until it bottoms-out.
Mixing Chamber
Do not put a wrench on these surfaces.
If needed, apply wrench to recessed area.
Apply breakaway sealant to the
threads just before reassembly.
Waterjet Disc
Washer
H2O Air Jet
Water Jacket
Disc slots face
toward the air jet.
