Replacing Water Or Air Main Valve Assembly - Planmeca Compact I Technical Manual

Chapter G - PARTS REPLACEMENT & REPAIR

7.6 Replacing water or air main valve assembly

CAUTION Ensure that the water and air supply lines are turned off.
a) Decompress the water and air pressures as described in section 7.1 "Decompressing water
and air pressures" on page G-36.
b) Disconnect the control cable from the main valve you are working on.
c) Detach the locking nut from the main valve. Remove the old main valve. Detach the valve
bottom plate.
d) Remove the valve support and its attachment plate by unscrewing the four screws. Remove
the O-ring, spring and core.
e) Install the new main valve assembly in reverse order.
f) Check that the valve functions correctly.
Valve cable
(green leads)
Water main valve
G-40 Planmeca Compact i
Air main valve assembly
VALVES & FILTERS REPLACEMENT
Locking nut
Air main valve
Valve bottom plate
Screws
Support attachment plate
Valve support
Core
Valve cable
(blue leads)
Technical Manual