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Replacement Operator Mechanism for MaxxAir MaxxFan Deluxe with Square Drive

Question:

lift operator raises roof top part way then jumps as if a tooth was missing. took apart ,[am a licensed rv tech] am convinced this is the case. my lift mech has a SQUARE hole this #10-20281k-1af shows hex hole. will they interchange ? if not i need one that will fit. can you help ? will order if you have one. thanks.

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Helpful Expert Reply:

It sounds like you have an older model of the MaxxFan Deluxe Roof Vent # MA00-07000K. Repair parts for these older models with a square drive have been discontinued. The Replacement Operator Mechanism # MA10-20281K-1AF will not work with your older lifter arm.

I do have a solution for you though. You will need to replace both the Operator Mechanism with Item # MA10-20281K-1AF and the Lift Arm with Item # MA10-20222KS. Check out the vent assembly diagram on page 4 of the Repair Parts List document I have attached for you.

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