OPERATION
FIG. 13
2.Remove exhaust cover and inspect exhaust filter (Figure 14). Replace filter if needed.
FIG. 14
3.Inspect brush bristles for wear. If bristles are worn to 14mm (0.56 in.) or less in length, see Brush Maintenance.
QUARTERLY MAINTENANCE (Every 250 Hours of Operation)
Check motors for carbon brush wear. Replace brushes when worn to a length of 10mm (0.38 in.) or less.
Contact an Authorized Service Center for carbon brush inspection.
FOR SAFETY: When servicing machine, unplug cord from wall outlet.
FOR SAFETY: When servicing machine all repairs must be performed by a qualified service person.
BRUSH MAINTENANCE
If brush bristles are worn to 14mm (0.56 in.) or less, rotate the bearing blocks to extend brush life as follows:
FOR SAFETY: When servicing machine, unplug cord from wall outlet.
1.Remove metal brush shoe from brush base (Philips screwdriver is required).
2.Remove brush assembly. Grip brush on opposite side of belt and pull outward.
3.Inspect drive belt(s) for wear; replace if necessary.
4.Rotate both bearing blocks 180_ and reinstall brush (Figure 15).
NOTE: Brush bearing blocks are labeled with numbers. To extend brush life, position label “2” outwards when reinstalling brush.
2
1
12
FIG. 15
5.Replace metal brush shoe after brush is properly installed.
FOOT LATCH ADJUSTMENT
Foot latch adjustment is required if machine handle doesn’t lock in the upright position and/or brush motor continues to run while in the upright position.
Follow adjusting instructions below:
FOR SAFETY: When servicing machine, unplug cord from wall outlet.
1.Lay vacuum cleaner face down.
2.Loosen foot latch screw,10mm wrench required (Figure 16).
3.Turn adjustment bushing to realign foot latch, 16mm wrench required. Bushing has an
Adjustment
Bushing
Foot Latch
Screw
FIG. 16
4. Retighten foot latch screw.
ViperR Upright Vacuum Cleaner (06 03)
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