3M AT-DIS7_PROHD Housing Assembly, II. This section from Section I for CV Ex- haust machines

B)Remove the Ø 1 in. (28 mm) Hose SGV Swivel Exhaust Assembly from the Housing and SGV Skirt Adapter or SGV Shroud Adapter.

C)Pull the SGV Retainer out of the bore of the Swivel Exhaust Assembly and remove the two O-rings.

D)Remove the Vacuum Shroud or Vacuum Skirt from the Housing. Move onto step 2.

2.Place the Speed Control to the midway position and remove the Retaining Ring. NOTE: If the machine is a vacuum model, the vacuum exhaust must be removed (see Section 1 above for removal) before the Retaining Ring can be removed with lock ring pliers. The Speed Control will now pull straight out. Remove the O-ring.

3.Unscrew the Inlet Bushing Assembly from the Housing. Remove the Valve Spring, Valve, Valve Seat, Valve Stem and O-Ring.

4.Press out the Spring Pin from the Housing and remove the Throttle Lever.

ASSEMBLY INSTRUCTIONS

NOTE: All assembly must be done with clean dry parts and all bearings are to be pressed in place by the correct tools and procedures as outlined by the bearing manufacturers.

Housing Assembly:

1.Install Throttle Lever into Housing with the Spring Pin.

2.Lightly grease the O-ring and place it on the Speed Control. Install Valve Stem, O-ring (cleaned and lightly greased) and insert the Speed control into the Hous- ing in the midway position. Install the Retaining Ring. CAUTION: Make sure the Retaining Ring is completely snapped into groove in the Housing.

3.Install the Valve Seat, the Valve and the Valve Spring. Coat the threads of the Bushing Assembly with 1 or 2 drops of 3M Rite-Loc TL22 or equivalent non-permanent pipe thread sealant. Screw the assembly into the Hous- ing. Torque to 60 in/lbs (6.77 Nm.)

4.For NV and CV machines follow the steps outlined in Section I below. For SGV machines follow the steps in Section III.

I.This section is for CV and NV

A)Place a clean felt Muffler all-the-way into the chamber of the Muffler Housing. Press the Bronze Muffler onto the Muffler Housing.

B)Screw the Muffler Housing assembly into the Housing until hand tight. Use a 21 mm socket/torque wrench combination to torque the Muffler Housing. Torque to 20 in/lbs (2.25 Nm). For NV machines move onto C. For CV machines move onto Section II.

C)Install the Non-Vacuum Shroud onto the Housing by working the shroud over and around the bottom of the housing flanges. Make sure the line up slots (on the

Housing) and tabs (on the Shroud) are engaged. Move onto the ”Spindle, bearing shield and Shaft Balancer Assembly” Section.

II.This section continued from Section I for CV Ex- haust machines:

A) For 5 and 6 in. (125 and 150 mm) machines:

(1)Install the 5 or 6 in. (125 or 150 mm. ) Shroud or 6 in. (150 mm) Clean Sanding Shroud onto the Housing by working the shroud over and around the bottom of the housing flanges. Slide the inlet end of the Ø 1 in. (28

mm)CV Swivel Exhaust Assembly or the Ø 3/4 in. (19

mm)CV Swivel Exhaust Assembly into the exhaust port of the Shroud or Clean Sanding Shroud until it hits the stop on the Swivel Exhaust Assembly.

NOTE: For installation of Shrouds and Skirts make sure the line up slots (on the Housing) and tabs (on the Shroud or Skirt) are engaged. Make sure that the key on the Swivel Exhaust Assembly bracket is aligned and engaged with the keyway on the Housing.

B) Place the Washer over the Screw. Thread the screw

Press Tool Top

Press Tool Base

T-1B

Bearing

Shim

Washer

Spindle

T-1A

34-8700-5191-8 Revision 10/03/07