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Installation and Operating Instructions
G
as burner WG20.../1-C ZM-LN (W-FM 25)
83055116 • 1/2016-05
8 Maintenance and service
8
.7 Removing and re-installing the blower wheel
Observe the notes on maintenance and servicing (see Ch. 8.1).
Removing
u Place the housing cover into service position (see Ch. 8.6).
u Remove the set screw 1 and remove the blower wheel.
Re-installing
u Re-install the blower wheel in reverse order and
• ensure correct alignment on the motor shaft 2.
• screw in a new set screw.
• turn the blower wheel to ensure it moves freely.
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