Mueller Roll-Up Door C250 - Manual (Page 7)

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Spring Roll Pin
Dual Tensioner
Tensioning Hub
Set Screw
Wall
Axle
A Using dual tensioner assembly’s
spring roll pin located in knurled
wheel, rotate upward in the
direction that clears the axle.
B Slide dual tensioner assembly
vover axle and tensioning hub,
with arrow pointing toward wall.
Release spring roll pin.
Wall
Axle
Axle Support
Set Screws
STEP 7: NON-TENSION END
STEP 5: ELECTRIC OPERATOR (OPTIONAL)
A Install as per instruction provided in electric operator kit.
NOTE: Use the DUAL TENSIONER and not the U-BOLT that is in the Operator Kit.
STEP 6: TENSION END RIGHT SIDE OF DOOR
(LOOKING FROM THE INSIDE OUT)
IS RECOMMENDED
STEP 7: NON-TENSION END A Slide axle support over axle,
with arrow pointing toward wall.