Model Swd Maintenance; Battery Maintenance; Dc Motor Brush Replacement - Linear SWC Installation Manual

Model SWD Maintenance

Battery Maintenance

The gel-cell batteries in this operator require no routine
maintenance. For assured continued performance, they
should be replaced every year. If power is to be removed
for one week or more, disconnect the negative wire from the
batteries as this will prevent deep discharging. Fully charge
before use after storage or upon initial installation.
REMOVE BRUSH RETAINING
1
CAP WITH FLATBLADE
SCREWDRIVER
4
SWR • SWC • SWD Swing Gate Operator Installation Guide
5
REPLACE CAP AND
CAREFULLY SCREW
INTO HOLDER
DON'T OVERTIGHTEN
THE CAP, IT WILL CRACK!
PUSH BRUSH INTO
THE HOLDER (IT ONLY
FITS IN ONE WAY)
Figure 15. Replacing DC Motor Brushes

DC Motor Brush Replacement

Brushes should be inspected every 100,000 cycles or
yearly, whichever comes fi rst. The motor has two brushes,
one on each side.
Original brushes are approximately 3/4" long and should be
replaced when they are 1/2" long, or sooner. If brushes are
allowed to wear beyond this point, permanent damage to
the motor may result.
To inspect the brushes: (1) remove the retaining cap with
straight-blade screwdriver; (2) carefully pull assembly
straight out; (3) measure the remaining brush material.
To reinstall: (4) place the brush in holder, aligning the
brush's rounded indentation correctly with motor shaft; (5)
gently push in the spring and align metal contact with oval
slot in the brush holder, then push it in with retaining cap.
Hold the cap in place and thread the cap into brush holder.
Do not overtighten or cap will crack!
Repeat for the other brush.
PULL ON CONTACT
2
TO REMOVE BRUSH
REPEAT INSPECTION WITH THE BRUSH
ON THE OTHER SIDE OF THE MOTOR
- 30 -
INSPECT THE LENGTH
3
OF THE BRUSH
3/4" WHEN NEW,
REPLACE WHEN 1/2"
LONG OR SOONER
227965 Revision X22 8-11-2011