Ransburg M90 Handguns 77073, 77132 - Manual (Page 30)

AH-99-01.3
M90 Handguns - Maintenance
2 6 2 6 2 6 2 6 2 6
NEEDLE SHAFT RETURN NEEDLE SHAFT RETURN NEEDLE SHAFT RETURN NEEDLE SHAFT RETURN NEEDLE SHAFT RETURN
SPRING REPLACEMENT SPRING REPLACEMENT SPRING REPLACEMENT SPRING REPLACEMENT SPRING REPLACEMENT
Removal Removal Removal Removal Removal
1. Remove the trigger and ground spring
from the gun (refer to “Trigger” in the
“Maintenance” section).
2. Loosen the barrel retaining nut and slide
it forward on the barrel.
3. Pull the barrel forward until there is
enough clearance between the needle
shaft spring retainer and the handle to
remove the spring.
Cleaning and Inspection Cleaning and Inspection Cleaning and Inspection Cleaning and Inspection Cleaning and Inspection
1. Clean all the components in a suitable
solvent and dry.
2. Check all components for wear, fatigue,
or damage and replace as required.
Reinstall Reinstall Reinstall Reinstall Reinstall
1. Install a new spring into the needle shaft
spring retainer.
2. Slide the barrel back into the handle
cavity until it seats against the barrel
gasket.
3. Check the spring to ensure it has
seated into the handle recess and
tighten the barrel retaining nut.
4. Reinstall the trigger and ground spring
(refer to “Trigger” in the “Maintenance”
section).
LOW VOL LOW VOL LOW VOL LOW VOL LOW VOLT T T T TAGE CABLE AGE CABLE AGE CABLE AGE CABLE AGE CABLE
PLUG ASSEMBL PLUG ASSEMBL PLUG ASSEMBL PLUG ASSEMBL PLUG ASSEMBLY Y Y Y Y
REPLACEMENT REPLACEMENT REPLACEMENT REPLACEMENT REPLACEMENT
Removal Removal Removal Removal Removal
1. Remove the gun from service (refer to
“To Remove the Gun from the Work
Site” in the "Maintenance" section).
2. Use a 3/32-inch hexagon Allen wrench
to loosen (DO NOT remove) the set
screw that retains the low voltage cable
plug assembly to the handle. The set
screw is located toward the bottom of
the handle on the front side.
3. Hold the bottom of the plug assembly
and pull it straight out of the handle.
Cleaning and Inspection Cleaning and Inspection Cleaning and Inspection Cleaning and Inspection Cleaning and Inspection
1. The low voltage cable plug assembly
should not be cleaned or soaked in any
solvents. If the assembly is contami-
nated, it must be replaced.
2. Examine the low voltage cable plug as-
sembly for damage to the housing, bro-
ken wires, and/or broken solder joints.
If any are found, the assembly must be
replaced.
3. Examine the (5) o-rings of the low volt-
age cable plug assembly and replace
any that are damaged.
4. If the old low voltage cable plug assem-
bly is to be reinstalled into the gun, it
should be tested first. (Refer to “Low
Voltage Control Unit Test Assembly”
manual, TE-96-01).
> Trying to twist or unscrew the low
voltage cable plug assembly from the
handle will damage the low voltage plug and
the hook/transformer. If this occurs, both
components have to be replaced.
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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