Lanair MXD300 - Manual (Page 47)

Section 13 - Service / Maintenance
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43
Fuel By-Pass Regulator
SKIP THIS SECTION WHEN USING
THE OPTIONAL METERING PUMP NOTE:
Diaphragm Replacement
1. Disconnect power to the heater.
2. Remove the locking nut and adjusting
screw from the by-pass regulator
assembly.
3. Disassemble the by-pass regulator and
discard the small plug, spring, large
plug. washer and diaphragm.
4. Thoroughly clean and dry remaining
parts.
5. Re-assemble using new small plug,
spring large plug washer and
diaphragm (Kit P/N 9874).
NOTE: Pay close attention to the posi-
tions of the large and small plugs.
adjusting screw
locking nut
cap
small plug
spring
large plug
washer
diaphragm
body
Fuel By-Pass Regulator Assembly