m
CORPORATION
MUNCIE, INDIANA, USA
INDUSTRIAL COMBUSTION EQUIPMENT AND VALVES
Maxon practices a policy of continuous product improvement. It reserves the right to alter specifications without prior notice.
Page 6100-S-10 Electro-Mechanical Valves
Installation Instructions
Review and comply with all general valve installa-
tion instructions provided separately. (See sketch
below.)
1. Mount both valves in fuel line with center to center
spacing as originally specified, and blocking valve
(without handle) downstream of main valve (with
handle).
2. Check valve alignment to be certain that operat-
ing wheels lie in the same plane.
3. Remove tape from the wheel of the main valve
and unwind the attached chain. Do not remove
the screw holding chain to wheel; it has been
factory positioned to assure correct alignment. Do
not remove tension spring attached to one end of
chain or the wooden block insert which preloads
the spring.
4. Take free end of chain and loop it around the
wheels of both main and blocking valve as shown
in sketch below. Depending on the specific valve
series and arrangement, tension spring may be
located either above or below the wheel center-
line.
5. Draw free end of chain and tension spring to-
gether so that as much slack as possible is
eliminated, then insert the open eye of the spring
"S" hook through the link in the chain that will
most nearly maintain this position.
6. Crimp the "S" hook shut around the chain link,
then cut and discard excess chain.
7. Remove spring preload wood block insert from
the tension spring, and verify that the chain is
drawn tight.
8. Rotate the operating handle of the main valve
fully to latching position for your particular valve,
then hold handle firmly in this position while
performing the next few steps.
9. Rotate blocking valve wheel fully counter-clock-
wise until it strikes a stop (it will slide within the
loop of chain).
10. Still holding main valve wheel in place, move
blocking valve wheel approximately 1/4 to 1/2
inch back in the clockwise direction. Insert the
#10-24 X 1/2" screw (furnished) through the chain
link that lines up with the tapped hole on bottom
of blocking valve wheel, then fasten securely.
11. Verify that the valves are wired in parallel as
shown in wiring schematic on page 6121.
To add wheel & chain assembly to
existing tandem valves:
1. Verify that both valves are in the same top
assembly position (TO or AW). Rotate if neces-
sary. (See top assembly rotation instructions on
pages 6100-S-3 and 6100-S-4.)
2. Bend handle of main valve outward about 25°.
3. Cut off handle of blocking valve at outer wheel
face.
4. Remove hardware holding main valve wheel in
place and mount new wheel and spacer to the
existing wheel with new hardware provided.
5. Cut chain loop to the desired length and secure to
both wheels.
Tandem Arrangements
(for simultaneous opening of main and blocking valves)
Tension
Spring
Piping by others
Flow
Blocking
Valve
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