Airfree T800 User Manual download pdf (Page 9)

October 2006 - 6 -

Disassembly and Reassembly of the Pulse Unit (cont.)

B. Inspection

1. Front Liner Plate

a) If light scarring on plate surface is present, resurface on Lap Plate in a figure eight motion with

220 grit sandpaper (wet or dry) using honing oil as a buffer.

Note: All markings must be removed.

b) If heavy scars or burring are present and cannot be resurfaced smooth, replace parts as needed.

2. Rear Liner Plate

a) If light scarring is present, resurface plate on lap in the same manner as above. Note: All markings

must be removed.

b) Check the connecting hex for wear. If rounded out, replace and inspect the female hex of the rotor in

the same manner.

c) If heavy scarring or burrs are present on the plate surface and cannot be resurfaced on Lap Plate,

replace parts as needed.

3. Liner Casing Setter

a) Wire wheel outer threads to remove old Loc-tite.

b) Resurface bottom setting surface (level) using Lap Plate and 220 grit sandpaper.

4. Driving Blades

a) Check the contour surface of the blades for scars or burring.

b) If driving blade is scarred below the contour surface, fluid will pass underneath the blade at contact

points, resulting in inaccurate pressure in the liner and low torque output.

c) If there is heavy scarring (cuts below contour surface) replace it.

d) Light scarring on contour surface is normal wear. Clean surface on Lap Plate by lapping the length of

the blade and rolling with the contour.

e) Light horizontal grooves on the side of the blade is normal wear.

f) Check plate ends of the blade for grooving. If heavy grooving, always replace the blades as a set.

5. Liner

a) Inspect inner horizontal and vertical blade seats for scars and burring.

1. Light scarring is normal wear.

2. Heavy scars will cause the fluid to pass by the driving blade, liner will not produce accurate

pressure for torque output. Replace.

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Airfree T800 User Manual Page 9