Inlet Valve Removal, Service And Installation; Valve Identification - Hunter G835 Owner's Manual

iNlET vAlvE REMovAl, SERvicE ANd iNSTAllATioN

Caution! Electric valve-in-head rotors are connected to pressurized main-line or sub-main piping. This pressurized
piping must be depressurized before servicing the inlet valve. Serious bodily injury can occur if valve is removed
when the piping is pressurized. Keep head and body parts away from the rotor's exposed internal openings at
all times. Wear proper eye protection and use the designated tools when servicing these rotors.
ToolS needed (VARieS WiTH RoToR Model)
once the riser assembly has been removed, the following tools are used to remove, service and replace inlet valves:
• G800 Valve Tool – PN 604000
• G900 Valve Tool – PN 280500
• Snap-Ring Tool – PN 251000
• 16" Needle-Nose Pliers Tool – PN 475600
• Manual Extraction Pump Tool – PN 460302
• TTS Valve Flushing Tool – PN 609400

VAlVe idenTifiCATion

It is important to note that there are different types of inlet valves (also commonly known as foot valves). If the incorrect
inlet valve is installed, the rotor will malfunction. Hunter has a color-coding system to help correctly identify these valves:
g800c check-o-Matic rotors = black screen attached to valve (fig 72)
g800e electric V.I.H. rotors = tan screen attached to valve (fig 73)
g900c check-o-Matic rotors = black screen attached to valve (fig 74)
g900e electric V.I.H. rotors = White screen attached to valve (fig 75)
Warning:
• If a black screened inlet valve is installed into an electric valve-in-head rotor, the rotor will not shut off.
• I f a tan or white screened inlet valve is installed into a check-o-matic rotor, the rotor will leak water from the
vent port during sprinkler operation and, the check height will be negatively affected.
FIg 72
Fig 72
Fig 73 FIg 73
Fig 74
FIg 74 Fig 75 FIg 75
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