KOHLER #A
-
240492 (MODEL F1) SECONDARY REGULATOR
When balance and idle lines are used, the lines should be
3/
16" size copper tubing.
To check
inlet pressure, remove plug on fuel inlet, insert manometer or ounce pressure gauge. Adjust inlet
pressure to 4
-
7 ounces (7
-
12
"
water column)
--
inlet pressure
is
adjusted on primary regulator.
If
trouble persists after readjustment and above points are checked, recondition the secondary regulator
as follows:
Disassembly: Remove assembly screws, separate cover from regulator body. Remove dia
-
phragm then remove retainer block screw and lever retainer, diaphragm lever and spring.
Inspect brass orifice for nicks or damage
--
do not remove unless replacement is needed.
Reconditioning:
Thoroughly wash all metal parts in cleaning solution,
blow out
all
passages.
Replace
all
worn, damaged parts.
Inspect diaphragm and gaskets bonded to both sides of
diaphragm
--
replace
as
unit if diaphragm or gasket damage is evident. Check brass orifice
-
-
replace if nicked.
Replace rubber seat if crushed or if foreign material imbedded in rubber.
Before reassembling regulator, make sure all parts are clean and free of dirt, lint, etc.
Reassembly: After reinstalling orifice, seat and idle adjustment, insert diaphragm lever and
spring then carefully secure with retaining screw
-
-
tighten screw only enough to hold lever in
place
--
overtightening will bind lever.
Position diaphragm and engage it to lever. Position
cover then secure with assembly screws
--
tighten evenly.
KOHLER #A
-
230695 (MODEL KN) SECONDARY REGULATOR
The model KN secondary regulator is very similar to the model
F1 which is discussed in the
foregoing. The KN does not,
however, have provision for an idle line nor does it have an idle adjust
-
ment needle. The model KN is used most frequently with the gas adapter in the combination gas-
gasoline systems. The adapter
6
this case has the idle adjustment.
The KN is a very sensitive regu
-
lator and offers excellent starting without need for choking or priming if properly installed.
The orifice size and maximum inlet pressure are stamped on the cover of the
KN--do not permit
inlet pressure to exceed maximum (usually
6
oz.
).
If an electric solenoid is used, it should be
mounted close to the model KN. The orifice size of the solenoid must be at least as large as orifice
in regulator.
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