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SPCL36104-S Suction System
3.4.3 Air Jet Connector
The MH-3 air connector is fastened to the gun body by two socket head screws. Air
jet position is fixed within the gun and is not adjustable.
3.4.4 Media Hose
3.4.4.1 (N/A) The 5/8” media hose enters through the handle of the MH-2 gun. A
hose clamp nut and “O” ring seal the hose to the gunbody. Any air leak around
the media hose will cause premature wear and failure of air jet and gunbody.
See Figure 1.
3.4.4.2 The 5/8” media hose enters the MH-3 Suction Blast Gun at the back and is
held in place by four (4) screws. The gun hose entry must be sealed with
silicone. Any air leak around the media hose will cause premature wear and
gun body failure. See Figure 2.
NOTE:
Blast hoses must be routed with a sweeping gradual bend. Tight turns and hard bends
cause high wear locations where the hoses will prematurely wear out from the inside.
When replacing hoses, avoid sharp bends and turns.
3.4.5 Media Regulator Assembly (See Figure 3)
The SAR-2 Media Regulator is threaded onto a 1 1/4” pipe nipple under the Storage
Hopper. The media hose is inserted into the 1 1/8” horizontal bore of the regulator.
The thumbscrew is provided to apply slight pressure against the media hose to prevent
movement. The media hose will partly cover the secondary air port. A smaller
opening will increase media flow and a larger opening will decrease media flow.
3.4.6 Storage Hopper
The Storage Hopper has a four (4) cubic foot capacity and is used as a reservoir for
media. It should be one half (1/2) full or more at all times. There is a hinged access
door for loading media and trash screen removal.
3.4.7 Individual Suction Blast Gun Shutoff Valves
A ball valve is provided to shut off each Blast Gun. Rotate the valve handle 90
degrees to shut off the air supply and stop the blast.
