Grizzly G0716 - Manual (Page 33)

Model G0716 (Mfg. Since 2/11)
-31-
symptom possible Cause possible solution
sandpaper
clogs quickly. 1. sanding depth of cut too much or feed
rate too slow.
2. Workpiece has high moisture content
or sap.
3. Not using the correct grit sandpaper.
4. poor dust collection.
5. sandpaper loaded with sawdust and gum.
1. reduce depth of cut or increase feed rate; use
coarser grit sandpaper.
2. use different stock, or accept the characteristics
of the stock and plan on cleaning/replacing
sandpaper frequently; remove applied finishes
before sanding.
3. use the correct grit sandpaper for the operation
(see page 21).
4. unclog ducts; close gates to improve suction;
re-design dust collection system.
5. Clean/replace sandpaper (see page 29).
Burn marks on
workpiece. 1. using too fine of sanding grit for depth
of cut.
2. sandpaper loaded with sawdust and gum.
3. Feed rate too slow.
4. sanding strip overlapped.
1. use coarser grit sandpaper or decrease depth
of cut.
2. Clean/replace sandpaper (see page 29).
3. increase feed rate.
4. properly re-install sandpaper strip (see
page 21).
glazed
workpiece
surface after
sanding. 1. sanding wet stock.
2. sanding stock with high amount of
applied finishes.
1. only sand stock that has moisture content
below 20%.
2. use different stock, or accept the characteristics
of the stock and plan on cleaning/replacing
sandpaper frequently; remove applied finishes
before sanding.
Workpiece
slips on conveyor. 1. Conveyor belt dirty or worn.
2. pressure rollers not properly adjusted. 1. Clean/replace conveyor belt (see page 29).
2. properly adjust pressure roller height (see
page 36).
uneven
workpiece
thickness from
side to side. 1. Elevation lock knob not tight and
sanding drum is deflecting up.
2. Conveyor belt not parallel to sanding drum.
3. gibs are too loose.
4. Conveyor belt is worn.
1. Fully tighten elevation lock knob after setting
the elevation.
2. properly align conveyor belt to sanding drum
(see page 35).
3. properly adjust the gibs (see page 34).
4. replace conveyor belt (see page 38).
Conveyor belt
slips or does
not track correctly. 1. Belt tension not properly adjusted.
2. Belt tracking not properly adjusted.
3. Conveyor belt is worn. 1. properly adjust belt tension (see page 33).
2. properly adjust belt tracking (see page 33).
3. replace conveyor belt (see page 38).
Elevation
handwheel
hard to rotate. 1. Elevation lock knob tight.
2. leadscrew and nut clogged with sawdust.
3. gibs are too tight.
1. loosen the elevation lock knob.
2. Clean and lubricate the leadscrew and nut (see
page 29).
3. properly adjust the gibs (see page 34).
sandpaper
strip comes off
drum or is loose. 1. sandpaper strip not properly wrapped
onto drum.
2. sandpaper strip not cut to the correct
dimensions.
3. slack in sanding strip.
4. torn or damaged sandpaper strip.
1. properly re-install sandpaper strip (see page 21).
2. only use sandpaper strips that are cut to the
correct dimensions (see page 21).
3. properly wrap sandpaper strip and make sure
the right end is fully inserted into the drum slot
(see
page 21).
4. replace sandpaper (see page 21).