Grizzly H8120 User manual

Product Information
• 10,000 RPM
• Requires 90 PSI
• Requires 2.8 CFM
• Requires 6" hook and loop sanding disc with
6-hole pattern
• 1⁄4" NPT female air inlet
• 3⁄4" (ID) dust collection hose
• Weighs 2.53 lbs.
Inventory
A. Orbital Sander ..............................................1
B. Dust Collection Hose ....................................1
C. Dust Collection Bag ......................................1
D. Wrench .........................................................1
E. Pneumatic Tool Oil Bottle .............................1
F. 1/4" NPT Male Plug .......................................1
MODEL H8120
6" RANDOM ORBITAL SANDER
INSTRUCTION SHEET
EYE INJURY HAZARD!
Always wear safety glasses
when using this tool to
prevent serious personal
injury.
INJURY HAZARD!
Always disconnect tool from
air to prevent unexpected
operation during service.
DUST HAZARD!
Always wear respirator when
using this tool.
Figure 1. Model H8120 inventory.
Assembly
1. Install the 1⁄4" NPT male quick-connect fitting
into the air inlet.
2. Attach a 6" hook and loop sanding disc to the
sanding pad as shown in Figure 2.
A
D
Figure 2. Attaching sanding disc.
COPYRIGHT © JANUARY, 2007 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#BL8858 PRINTED IN CHINA
DO NOT EXCEED 120 PSI!
Personal injury could
occur.
C
B
E
F

Maintenance
Lubricate at least once every eight hours of oper-
ation. Place one or two drops of pneumatic tool oil
directly into the air fitting as shown in Figure 5.
Figure 5. Lubricating directly into air fitting.
Operation
1. Connect the tool to compressed air.
2. Hold the sander and press the throttle lever
(Figure 4) to turn the sander ON.
Before installing the sanding disc, run the sander
for a few minutes to eject excess oil, then wipe
the tool down with a clean rag and begin sanding.
Oil the tool after use or storage.
Service
To replace the sanding pad:
1. Disconnect the sander!
2. Insert the included wrench onto the spindle
as shown in Figure 6.
3. Turn the regulator (Figure 4) to adjust the
sanding pad speed.
4. Remove pressure on the throttle lever to stop
the sanding pad.
5. When the sandpaper loses its effectiveness,
disconnect the sander and replace the
sandpaper.
If you need help with your new pneumatic tool, call
our Tech Support at: [phone].
Figure 4. Sander controls.
Figure 6. Wrench inserted onto spindle.
3. Hold the wrench and unscrew the sanding
pad.
4. Install a new sanding pad (Part # PH8120048)
and secure it with the wrench.
Wrench
Sanding
Pad
Regulator
Throttle
Lever
3. Attach the dust collection hose to the sander
as shown in Figure 3A, insert the hose into
the dust collection bag, and secure with the
strings (Figure 3B).
Figure 3. Attaching dust collection hose to
sander and dust collection bag.
BA

Accessories
G9955—Bench Top Dual Fan Dust Filter
Two separately switched fan motors can be used
to draw a maximum 400 CFM of your dusty shop
air though the 5 micron pleated filter. Perfect for
sanding and power carving, the clear plastic hood
helps to direct flow from the work area directly into
the filter.
Figure 10. G9955 Dust Filter.
Figure 9. Half-mask respirator and disposable
cartridge filters.
H2499—Small Half-Mask Respirator
H3631—Medium Half-Mask Respirator
H3632—Large Half-Mask Respirator
H3635—Disposable Cartridge Filter Pair P100
Wood dust is a known carcinogen and has been
linked to nasal cancer and severe respiratory ill-
nesses. If you work around dust everyday, a half-
mask respirator can be a lifesaver. Also compat-
ible with safety glasses!
H3275—1⁄4" x 25' Coil Hose
These recoil hoses stay neatly coiled when not
in use, yet stretch to full length when needed.
Great for bench-top use when clutter is always a
concern. Coil springs protect ends from kinking.
1⁄4"NPT.
Figure 8. H3275 Coil Hose.
H3263—5 Pc. Quick Coupler Set
This 5-Pc. Solid Brass Quick Coupler Set includes
one 1⁄4" NPT female quick coupler, one 1⁄4" NPT
female thread connector and three 1⁄4" NPT male
thread connectors.
Figure 7. H3263 Quick Coupler Set.
H8121—6 H&L Sanding Pad Without Holes
H8122—6 H&L Sanding Pad Vinyl Sticky Back
H8994—80 Grit, 6" Sanding Disc
H8995—100 Grit, 6" Sanding Disc
H8996—120 Grit, 6" Sanding Disc
H8997—150 Grit, 6" Sanding Disc
H8998—180 Grit, 6" Sanding Disc
H9000—240 Grit, 6" Sanding Disc
H9001—280 Grit, 6" Sanding Disc
H9002—320 Grit, 6" Sanding Disc
H9003—400 Grit, 6" Sanding Disc
H9004—500 Grit, 6" Sanding Disc
H9005—600 Grit, 6" Sanding Disc
H9006—800 Grit, 6" Sanding Disc
H9007—1000 Grit, 6" Sanding Disc
H9008—1200 Grit, 6" Sanding Disc
H9009—1500 Grit, 6" Sanding Disc

H8120 Parts Breakdown and List
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REF PART # DESCRIPTION REF PART # DESCRIPTION
1 PH8120001 AIR INLET 29 PH8120029 ROTOR BLADE
2 PH8120002 EXHAUST CAP 30 PH8120030 FRONT PLATE
3 PH8120003 TWO WAY COUPLER 31 PH8120031 MOTOR SHAFT BALANCER
4 PH8120004 THREE WAY COUPLER 32 PH8120032 SPECIAL PIN
5 PH8120005 PIN 3 X 28 33 PH8120033 BEARING WASHER
6 PH8120006 AIR OUT PLUG 34 PH8120034 O-RING
7 PH8120007 O-RING 35 PH8120035 LOCK RING
8 PRP53M ROLL PIN 3 X 40 36 PH8120036 WOODRUFF KEY
9 PH8120009 THROTTLE LEVER 37 PH8120037 CRANK SHAFT
10 PR48M EXT RETAINING RING 11MM 38 PS03M PHLP HD SCR M6-1 X 8
11 PH8120011 HOUSING 39 PH8120039 SPECIAL BALL BEARING
12 PH8120012 O-RING 40 PR48M EXT RETAINING RING 11MM
13 PH8120013 VALVE SET 41 P6001 BALL BEARING 6001ZZ
14 PH8120014 O-RING 42 P588 BALL BEARING 588ZZ
15 PH8120015 O-RING 43 PH8120043 BEARING WASHER
16 PH8120016 VALVE STEM 44 PH8120044 PRINCIPAL AXIS
17 PH8120017 COMPRESSION SPRING 45 PH8120045 INTERNAL RING
18 PH8120018 REGULATOR 46 PH8120046 JACKET
19 PRP13M ROLL PIN 2.5 X 19 47 PH8120047 SHROUD
20 PH8120020 SPECIAL SCREW 48 PH8120048 SANDING PAD 6"
21 PH8120021 SPECIAL WASHER 49 PH8120049 DUST COLLECTION HOSE
22 PH8120022 ROLL PIN 50 PH8120050 SPINDLE WRENCH
23 P6000 BALL BEARING 6000ZZ 51 PH8120051 PNEUMATIC TOOL OIL
24 PH8120024 FLANGE 52 PH8120052 1/4" NPT MALE QUICK CONNECT FITTING
25 PH8120025 END PLATE 53 PH8120053 DUST WARNING LABEL
26 PH8120026 CYLINDER 54 PH8120054 GRIZZLY AIR TOOLS LABEL
27 PH8120027 O-RING 55 PH8120055 DUST COLLECTION BAG
28 PH8120028 ROTOR