Service manual

7
1) Disconnect the main air hose from the pneumatics panel.
2) Disconnect each air
hose from the fittings
which are connected
to the Head pressure
regulator, as shown.
Push inward on the
locking collar as you
pull the air hose out of
the fitting. You may
label each hose with
tape to help remind
you of its proper
connection / location
when re-assembling.
3) Grasp the main body of
the regulator, and turn
to the left as you hold
the mounting lock ring
on top of the bracket,
either by hand or with
large pliers, as shown.
Unscrew the lock ring
completely, and remove
the regulator/gauge
assembly from the
circular bracket hole.
Note: Certain regulator
types may require
removal of the
adjustment knob prior to
removing the locking
ring. Simply lift upward
on the knob, and pry off carefully. (see photo below)