Ransburg M90 Handguns 77073, 77132 - Manual (Page 27)

AH-99-01.3
M90 Handguns - Maintenance
2 3 2 3 2 3 2 3 2 3
7. While holding the barrel in place, screw
the retaining nut onto the handle by hand
and then tighten using the special multi-
purpose wrench. Then screw the re-
taining nut of the fluid tube subassembly
into the barrel fluid inlet chamber and
tighten using a 3/4-inch open end
wrench.
> Be sure the conductive sponges are in
place inside the barrel chamber. Without
these parts, proper output voltage may not
be attained. (Classic Only)
(Classic Only) (Classic Only) (Classic Only) (Classic Only)
C A U T I O N C A U T I O N C A U T I O N C A U T I O N C A U T I O N
!!!!!
8. Check the spacing between the back of
the spring retainer and the handle. It
should be about 1/8-inch. If not, check
for one of the following:
• Gasket has been left out
• Loose retaining nut
• Loose valve seat body
• Improper setting of the trigger adjust-
ment nut and spring retainer
9. Place the grounding spring over the air
valve stem.
10. Pull the grounding spring back and slide
the trigger into position.
11. Secure the trigger with the two shoulder
screws.
> Torque the barrel retaining nut to 8 to
10 lb • ft or after hand tightening, torque an
additional 1/16 to 1/8 turn using the spe-
cial multi-purpose wrench.
N O T E N O T E N O T E N O T E N O T E
F F F F FAN AIR V AN AIR V AN AIR V AN AIR V AN AIR VAL AL AL AL ALVE VE VE VE VE
Removal Removal Removal Removal Removal
1. Turn control knob to the open position
(screwed fully out, counterclockwise).
2. With a 9/16-inch open end wrench, un-
screw the retaining nut and remove the
entire valve assembly.
Disassembly Disassembly Disassembly Disassembly Disassembly
1. Turn the control knob clockwise to the
closed position or until it bottoms on the
retaining nut.
2. Secure the control knob in a vise (do not
over tighten, it could break) with the
needle pointing upward.
3. With a 1/4-inch wrench on the wrench
flats of the needle, unscrew the needle
and remove it from the control knob
stem.
4. Remove the spring from the control
knob stem.
5. Unscrew the control knob and pull it out
of the retaining nut.
6. With a small rod (1/4-inch diameter),
push the two washers and Teflon o-ring
out of the retaining nut.
> With the control knob turned fully into
the retaining nut the tension on the spring is
relieved. If it is not, the needle could be
projected from the control knob stem and
cause personal injury.
C A U T I O N C A U T I O N C A U T I O N C A U T I O N C A U T I O N !!!!!
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