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g8749 drum/Flap sander

iNtRODUctiON

We stand behind our machines. if you have any 
service questions, parts requests or general ques-
tions about the machine, please call or write us at 
the location listed below.

grizzly industrial, inc.

1203 lycoming Mall Circle

Muncy, pa  17756

phone: (570) 546-9663

Fax: (800) 438-5901

E-Mail: techsupport@grizzly.com

if you have any comments regarding this manual, 
please write to us at the address below:

grizzly industrial, inc.

C

/

technical documentation Manager

p.o. Box 2069

Bellingham, Wa  98227-2069

Email: manuals@grizzly.com

contact info

Functional Overview

Manual Accuracy

We are proud to offer this manual with your new 
machine!  We've  made  every  effort  to  be  exact 
with the instructions, specifications, drawings, and 
photographs of the machine we used when writ-
ing  this  manual.  however,  sometimes  errors  do 
happen and we apologize for them.

also, owing to our policy of continuous improve-
ment, 

your  machine  may  not  exactly  match 

the manual. if you find this to be the case, and 
the difference between the manual and machine 
leaves you in doubt, immediately call our techni-
cal support for updates or clarification.

For  your  convenience,  we  always  keep  current 
grizzly  manuals  and  most  updates  available  on 
our website at 

www.grizzly.com. any updates to 

your machine will be reflected in these documents 
as soon as they are complete. Visit our site often 
to check for the latest updates!

the Model g8749 drum/Flap sander is generally 
used  for  edge  contour  sanding  using  the  sand-
ing drums, as shown in 

Figure 1, or for round or 

spherical sanding using the flap sander, as shown 
in 

Figure 2.

Figure 1. typical drum sanding operation.

Figure 2. typical flap sanding operation.

Summary of Contents for G8749

Page 1: ...NER S Manual Copyright 2000 By Grizzly Industrial Inc REVISED NOVEMBER 2008 TS Warning No portion of this manual may be reproduced in any shape Or form without the written approval of Grizzly Industri...

Page 2: ...ERSONAL PROTECTIVE EQUIPMENT 4HE MANUFACTURER WILL NOT BE HELD LIABLE FOR INJURY OR PROPERTY DAMAGE FROM NEGLIGENCE IMPROPER TRAINING MACHINE MODIFICATIONS OR MISUSE 3OME DUST CREATED BY POWER SANDING...

Page 3: ...ory 10 Site Considerations 10 Test Run 11 Mounting 12 Assembly 12 SECTION 4 OPERATIONS 15 Operation Safety 15 Sanding Tips 15 ON OFF Switch 16 Drum Sanding 16 Flap Sanding 16 SECTION 5 ACCESSORIES 17...

Page 4: ...d photographs of the machine we used when writ ing this manual However sometimes errors do happen and we apologize for them Also owing to our policy of continuous improve ment your machine may not exa...

Page 5: ...G8749 Drum Flap Sander 3 Identification Figure 3 Model G8749 identification Mounting Holes Motor Sanding Drum ON OFF Switch Flap Sander...

Page 6: ...ZY C B6 Motor IneZ I 8 8VeVX idg HiVgi cYjXi dc dghZedlZg E KdaiV Z K E VhZ H c aZ 6beh 6 HeZZY GEB 8nXaZ o CjbWZg D HeZZYh EdlZg IgVch Zg 9 gZXi 9g kZ 7ZVg c h H ZaYZY VcY EZgbVcZcian HZVaZY Other Sp...

Page 7: ...EAD NSTRUCTION ANUAL EFORE PERATING THIS ACHINE 4HE PURPOSE OF SAFETY SYMBOLS IS TO ATTRACT YOUR ATTENTION TO POSSIBLE HAZARDOUS CONDITIONS 4HIS MANUAL USES A SERIES OF SYMBOLS AND SIGNAL WORDS INTEND...

Page 8: ...dch dg ajWg XVi c VcY X Vc c VXXZhhdg Zh 352 5 2 3 2 0 7 2 22 4 9 2 53 29 3AFETY NSTRUCTIONS FOR ACHINERY 2 6 534 93 72 3 BV Z V VW i d X ZX c dg Znh VcY VY_jhi c lgZcX Zh WZ dgZ ijgc c bVX cZgn 2 0 2...

Page 9: ...conditions Use this and other machinery with caution and respect Failure to do so could result in serious per sonal injury damage to equipment or poor work results Like all machinery there is potentia...

Page 10: ...e that it is grounded DO NOT remove ground prong from plug to fit into a two pronged outlet If the plug will not fit the outlet have the proper outlet installed by a qualified electrician Extension Co...

Page 11: ...scription Qty Wrenches 14 19mm 1 Each Mounting Hardware Page 11 As Needed Items Needed for Setup Your machine was carefully packaged for safe transportation Remove the packaging materials from around...

Page 12: ...ned at your local hardware store SUFFOCATION HAZARD Immediately discard all plas tic bags and packing materi als to eliminate choking suf focation hazards for children and animals Workbench Load Refer...

Page 13: ...gular operation The test run consists of verifying the following 1 The motor powers up and runs correctly and 2 the safety disabling mechanism works correctly If during the test run you cannot easily...

Page 14: ...ide Attaching Flap Sander 1 DISCONNECT SANDER FROM POWER 2 When removed from the shipping box the flap sander is held together by two tie wraps Hold the assembly together from top to bot tom then remo...

Page 15: ...n arrows and the rota tion arrow on the spindle housing match Alwayscheckthesanding drum air pressure before using it Only use a hand operated air pump to inflate the sanding drum to 10 PSI If the dru...

Page 16: ...e uses the arbor bolt with left hand threads which tightens by rotating it counterclockwise The right spindle arbor bolt has right hand threads and tightens by rotat ing it clockwise Figure 13 Install...

Page 17: ...er is a safe tool when used properly In addition to the safety instructions in this manual the most important safety consideration is to use common sense at all times Follow these rules when sanding M...

Page 18: ...le when the sanded edge is to be sharp Make sure the sanding sleeve is mounted on the drum and sander so that the sleeve rotation and spindle rotation match The spindle will always rotate toward the o...

Page 19: ...irator can greatly reduce your risk Compatible with safety glasses Aluminum Oxide Sanding Sleeves G9196 31 4 Diameter 60 Grit G9197 31 4 Diameter 80 Grit G9198 31 4 Diameter 100 Grit G9199 31 4 Diamet...

Page 20: ...ning Lubrication Bearings are sealed and permanently lubricated so simply leave them alone unless they need replacement Replacing Sanding Sleeves Your sander is supplied with a large 43 4 x 8 sanding...

Page 21: ...center of the flap sander as shown in Figure 21 6 Make sure the sandpaper pieces are even with one another and are centered in the retaining bar then re tighten the retaining bar screws to hold them i...

Page 22: ...ct motor wiring connections Page 23 6 Ensure circuit size is correct replace weak breaker 7 Check fix broken disconnected or corroded wires 8 Replace switch 9 Test repair replace Machine stalls or is...

Page 23: ...kpiece against the sanding abrasive 2 Use different stock or accept the characteristics of the stock and plan on cleaning replacing sandpaper frequently Burn marks on workpiece 1 Sandpaper grit too fi...

Page 24: ...isconnected or connected during any wiring task to ensure tight connections 4 MOTOR WIRING The motor wiring shown in these diagrams is current at the time of printing but it may not match your machine...

Page 25: ...AFETY ON PAGE 22 HiVgi 8VeVX idg B 9 K68 gdjcY Motor ON OFF Switch 110VAC NEMA 5 15 Plug As Recommended WARNING SHOCK HAZARD Disconnect power before working on wiring CZjigVa gdjcY di Wiring Diagram F...

Page 26: ...24 G8749 Drum Flap Sander 6 Parts Breakdown SECTION 9 PARTS...

Page 27: ...29 STRAIN RELIEF 11 G9211 SANDING SLEEVE 4 3 4 X 8 120G 30 PWRCRD100L POWER CORD 110V W 5 15 PLUG 12 P8749012 AIR VALVE 31 P8749031 BASE 13 P8749013 VALVE CAP 32 P8749032 S CAPACITOR 400M 125V 3 X 1 3...

Page 28: ...26 G8749 Drum Flap Sander...

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Page 32: ...RECT AND 3AVE WITH RIZZLY n 4RUSTED 0ROVEN AND A REAT 6ALUE 2 s 3 52 2 2 s 2 23 3 00 7 4 523 s 2 30 3 7 4 52 6ISIT UR 7EBSITE 4ODAY ND ISCOVER 7HY RIZZLY S 4HE NDUSTRY EADER ALL 4ODAY OR 2 ULL OLOR AT...

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