3M PG II, Owner'S Manual

Page: 13 / 68

© 3M 2020. 13
Repair Procedures
WARNING
Prior to making any repairs on the applicator, make certain
that the applicator is at room temperature and that both air
and electrical service lines have been disconnected from their
respective sources. Failure to disconnect the electrical power
source could result in electrical shock. Heat shield must be in
place before connecting applicator to electrical outlet.
Procedure Part Kit
A. Handle Kit
B. Regulator Kit
C. Valve Kit
D. Hose Kit
E. Switch Kit
F. Trigger Kit
All of the above part kits repair procedures require “Handle and
Heat Shield Disassembly”.
G. Heat Shield Kit
H. Heater Kit
I. Thermostat/TCO Kit
All of the above part kits repair procedures require “Heat Shield
Disassembly- procedure G”.
Heat Shield Disassembly Instructions
Disconnect electrical and compressed air service.
Remove the heat shield assembly by removing the two Phillips head
screws from either side of the heat shield and the one Phillips head
screw on the heat shield immediately above the loading chamber.
Reassemble, following reverse procedure.
Handle Disassembly Instructions
With the nozzle of the applicator pointing away from you, remove
the seven Phillips head cap screws in the handle. These screws are
located in the left hand side of the handle grip, two in the pistol
grip itself, two just forward of the wire terminal and three to the
rear of the wire terminal. Remove the long screw on the bottom left
of the flange immediately above the three screws located to the
rear of the wire terminal. Without removing the wires from the wire
terminals, lift the handle up and to the front of the applicator. This
operation will allow for subsequent repair steps.
Handle Disassembly Instructions
A. Handle Kit
Disconnect electrical and compressed air service.
To replace applicator handles, first follow “Handle Disassembly
Instructions.” Next, remove the electrical wiring from the terminal
strip on the left handle, replacing them to the same terminals
on the replacement. The right half of the handle is removed by
removing the four Phillips head cap screws. Next remove the
electrical wiring from the terminal strip and reassemble these to
the replacement right half handle. Lift the switch out of its slot in
the handle and replace it in the new handle. Replace the trigger
and trigger pin at this time. Using reverse procedure, reassemble
the right handle half, then the left. Be sure all the electrical wires
are in place and are not being pinched.