2
Sailrite MC-SCR Power System |
MC-SCR MotoR InStallatIon
|
PoweRPluS wheel InStallatIon
Put the drive belt around the motor pulley and guide it
up and over the sewing machine's balance wheel (
Figure
6
). Adjust the belt tension so that is has 1/16" slack when
depressed at its midpoint. Fine tune by moving the motor
position in the motor bracket slots. Loosen the nuts,
adjust the motor position, and retighten.
PowerPlus Balance Wheel for MC-SCR (#100849)
Sailrite PowerPlus Balance wheel for MC-SCR:
PoweRPluS wheel InStallatIon
The optional PowerPlus Balance Wheel for MC-SCR is a
large diameter wheel that slows the machine down and
increases power. This wheel uses a toothed timing belt in
place of the 3L drive belt to eliminate belt slippage. It also
comes with a cogged motor pulley.
InStall the PoweRPluS wheel
If using the optional PowerPlus balance wheel (#100847),
install the wheel after mounting the MC-SCR power
system:
1. Remove the standard balance wheel.
The original balance wheel is most likely secured
to the sewing machine's shaft by 1 or 2 screws in a
flange in or near the belt track. There may also be a
large screw at the very end of the shaft for mounting
the wheel. Remove the large screw and loosen the set
screw(s) in the belt groove area to release the balance
wheel and expose the shaft.
1/8" Gap
2. Position the PowerPlus balance wheel.
Carefully install the balance wheel bushing (select
the bushing that fits your sewing machine shaft) on
the exposed shaft so it is 1/8" from the casting of the
machine (
Figure 7
). Screw it down tightly with the two
allen head set screws. Then slide the PowerPlus wheel
onto the bushing and align the holes.
3. Secure the PowerPlus balance wheel.
Push two truss head screws through the wheel holes,
engage with the threaded holes of the bushing, and
tighten (
Figure 8
). The remaining hole in the PowerPlus
wheel (slightly offset) is for installation of an optional
handcrank.
