Use and Care Manual

17
10.0 User-maintenance
Before doing maintenance on
the machine, disconnect it from the electrical
supply (pull out the plug), unless indicated
otherwise. Failure to comply may cause serious
injury.
10.1 Cleaning and lubrication
For best results, make cleaning the sander a regular
shop procedure. Allowing excess build-up of dust
and debris can adversely affect performance
through loading of the abrasives, slippage on the
conveyor table, and/or the accumulation of material
inside the drums which can throw off the center of
balance.
NOTE: Bearings are pre-sealed and require no
lubrication.
• Brush the conveyor belt after cleaning
operations. If not cleaned, the conveyor belt
could allow stock to slip during sanding
operations.
• Lubricate conveyor bushings as needed, and
check for wear.
• Lubricate elevating leadscrew (A, Figure 10-1)
as needed.
• Clean sawdust from abrasive strip and brush
dust from conveyor belt.
• Keep slide areas clean (B, Figure 10-1).
• Insert NLGI #2 grease into the five fittings (C,
Figure 10-2) every 150 work hours. Do not over-
grease.
• Blow dust from motors and switches.
• Blow dust from inside of sanding drum, which
may cause vibration or offset the center of
balance. (Leave your dust collector on when
cleaning dust from the drums.)
• Check all set screws for tightness on parts such
as bearings, conveyor table, and couplings.
Figure 10-1: maintenance areas
Figure 10-2: grease fittings
10.2 Drum elevation adjustment
If the height control mechanism does not operate
easily or smoothly or there is excessive vertical
movement or deflection of the drum carriage tighten
all four (4) lock nuts (D, Figure 10-1) and then
loosen them 1/8 to 1/4 turn. If the lock nuts are set
too tight, height control will not operate easily. If the
lock nuts are too loose, excessive deflection of the
outboard end of the drum carriage will result.
10.3 Conveyor belt replacement
1. Disconnect sander from power source/unplug.
2. Raise drum to highest position.
3. Remove infeed/outfeed tables, if installed.
4. Turn take-up screws (see Figure 8-3) on both
sides of conveyor to relieve belt tension, and
slide the driven roller fully inward.
5. Remove two (2) screws at inboard side which
attach conveyor table to base.
6. Remove two (2) screws that attach conveyor
table to drum alignment bracket (E, Figure 10-
3).
7. Loosen two table locks (F, Figure 10-3).
8. Lift up conveyor table and remove it from
machine. Avoid tearing the belt on any edges
underneath the conveyor table. Do not allow the
Trackers to drop, as they may break.
9. Set conveyor on motor side and slide conveyor
belt off end of conveyor table.
10. Install new belt along with trackers (see sect.
11.0), and re-install conveyor table. Tension
and track the new belt.