Service manual

Please note: Use of an adjustable wrench or any type of pliers for removal or

installation of these air valves and fittings is not recommended. Fletcher-Terry will

not be responsible for damaged parts or repairs required to a cutting head caused

by the use of improper tools.

5) Prior to installing the new flow

control valve, it is advisable to

pre-set the flow adjustment knob:

a. Begin by unscrewing the

knurled silver lock ring

completely, until it comes

into contact with the black

adjustment knob.

b. Then screw the adjusting

knob clockwise until moderate

resistance is felt. It is not necessary to

use great force to tighten the knob.

Unscrew existing valve by

hand CCW to remove