Wayne-Dalton 3790-Z installation instructions Cable Drums

2	Cable Drums
Tools Needed:	NOTE: If you have a Torquemaster®
Tape Measure	counterbalance, skip this step and continue
	with Step 2 on page 10. If you have a
Step Ladder	Torquemaster® Plus counterbalance system,
	complete Steps 2-3 on pages 8 and 9.
	IMPORTANT! RIGHT AND LEFT HAND IS
	ALWAYS DETERMINED FROM INSIDE THE
	GARAGE LOOKING OUT.
	Shake the TorqueMaster® spring tube
	assembly gently to extend the winding shafts
	out about 5" on each side. For single spring
	applications, there will be no left hand spring
	in the TorqueMaster® spring tube assembly.
	Lift the TorqueMaster® spring tube assembly
	and rest it on the top of the flagangles.
	NOTE: Cable drums are marked right and
	left hand. Cable drums and TorqueMaster®
	spring tube assembly are cam shaped to fit
	together only one way.
	Pre-wrap the Torquemaster® Plus cable
	drum with the counter balance cable 1-1/2
	wraps (see illustrations).
	To install the cable drum, slide the correct

Drums come with drum wraps pre-installed

on them.

	Right Hand	Counterbalance Cable
TorqueMaster® Spring Tube	Cable Drum
Assembly (Cam Peak Straight Up)

5”

1-1/2 Wrap

(Right hand cable drum shown, left hand cable drum is

symmetrically opposite)

cable drum over the winding shaft until the

cable drum seats against the TorqueMaster®

spring tube assembly.

The winding shaft must extend past the

cable drum far enough to expose the splines

and the groove. Align the winding shaft

groove with the round notch in the flagangle.

For double spring applications, repeat for

opposite side.

For single spring applications, pre-wrap the

left hand Torquemaster® Plus cable drum

with counter balance cable 1-1/2 wraps and

insert the loose winding shaft into the cable

drum prior to sliding the cable drum over the

Cam Peak

Straight Up

Groove

Round Notch

Flagangle

Splines

Winding Shaft

Cable

Drum

TorqueMaster® spring tube assembly.

NOTE: On single spring applications, take

care in handling the loose winding shaft (left

side) so that it does not slide back into the

TorqueMaster® spring tube assembly.

Cam Peak

Straight Up

Cable Drum

Groove

Counterbalance Cable

Winding Shaft

Splines

Loose Winding Shaft

8Please Do Not Return This Product To The Store. Call Us Directly! Our Trained Technicians Will Answer Your Questions and/or Ship Any Parts You May Need.

You can reach us Toll Free at 1-888-827-3667 for Consumer Assistance or online at www.wayne-dalton.com