Ingersoll Rand Grinder 7980 User Manual

SECTION  
MANUAL  
M10  
25  
OPERATOR’S MANUAL  
)
INCLUDING:ĂOPERATION,ĂINSTALLATIONĂ&ĂMAINTENANCE  
Released: 08-28-72  
Revised: 01-14-00  
MODELS: 7980–( )–( )  
85,000 R.P.M. TURBINE GRINDER  
ARO is not responsible for customer modification of tools for applications on which ARO  
was not consulted.  
IMPORTANT SAFETY INFORMATION ENCLOSED.  
READ THIS MANUAL BEFORE OPERATING TOOL.  
IT IS THE RESPONSIBILITY OF THE EMPLOYER TO PLACE THE INFORMATION  
IN THIS MANUAL INTO THE HANDS OF THE OPERATOR.  
FAILURE TO OBSERVE THE FOLLOWING WARNINGS COULD RESULT IN INJURY.  
PLACING TOOL IN SERVICE  
USING THE TOOL  
Always operate, inspect and maintain this tool  
in accordance with American National  
Standards Institute Safety Code for Portable  
Air Tools (ANSI B186.1).  
For safety, top performance, and maximum  
durability of parts, operate this tool at 90 psig  
(6.2 bar/620 kPa) maximum air pressure at the  
inlet with 3/16” (5 mm) inside diameter air  
supply hose.  
Always turn off the air supply and disconnect  
the air supply hose before installing, removing  
or adjusting any accessory on this tool, or  
before performing any maintenance on this  
tool.  
Always wear eye protection when operating or  
performing maintenance on this tool.  
Always wear hearing protection when  
operating this tool.  
Keep hands, loose clothing and long hair  
away from rotating end of tool.  
Anticipate and be alert for sudden changes in  
motion during start up and operation of any  
power tool.  
Keep body stance balanced and firm. Do not  
overreach when operating this tool. High  
reaction torques can occur at or below the  
recommended air pressure.  
Tool accessories may continue to rotate  
briefly after throttle is released.  
Do not use damaged, frayed or deteriorated  
air hoses and fittings.  
Air powered tools can vibrate in use.  
Vibration, repetitive motions or uncomfortable  
positions may be harmful to your hands and  
arms. Stop using any tool if discomfort,  
tingling feeling or pain occurs. Seek medical  
advice before resuming use.  
Use accessories recommended by ARO.  
This tool is not designed for working in  
explosive atmospheres.  
Be sure all hoses and fittings are the correct  
size and are tightly secured. See Dwg.  
TPD905–1 for a typical piping arrangement.  
Always use clean, dry air at 90 (6.2 bar/  
620 kPa) psig maximum air pressure. Dust,  
corrosive fumes and/or excessive moisture  
can ruin the motor of an air tool.  
Do not lubricate tools with flammable or  
volatile liquids such as kerosene, diesel or jet  
fuel.  
This tool is not insulated against electric  
shock.  
Do not remove any labels. Replace any  
damaged label.  
The use of other than genuine ARO replacement parts may result in safety hazards, decreased tool  
performance, and increased maintenance, and may invalidate all warranties.  
Repairs should be made only by authorized trained personnel. Consult your nearest ARO Authorized  
Servicenter.  
For parts and service information, contact your local ARO distributor, or the Customer Service Dept. of the Ingersoll–Rand  
Distribution Center, White House, TN at PH: (615) 672–0321, FAX: (615) 672–0801.  
ARO Tool Products  
Ingersoll–Rand Company  
1725 U.S. No. 1 North D P.O. Box 8000 D Southern Pines, NC 28388–8000  
E2000 INGERSOLL–RAND COMPANY D PRINTED IN U.S.A.  
 
M10  
25  
LUBRICATION  
Do not mark any nonmetallic surface on this tool  
with customer identification codes. Such actions  
could affect tool performance.  
MAIN LINES 3 TIMES  
AIR TOOL INLET SIZE  
TO  
AIR  
ARO Part #  
Description  
Where Used  
SYSTEM  
ORings  
36460  
4 oz. Stringy  
Lubricant  
TO  
AIR  
TOOL  
Bearings  
33153  
5 lb. ‘‘EP” – NLGI  
#1 Grease  
LUBRICATOR  
FILTER  
REGULATOR  
Always use an air line lubricator with these tools.  
BRANCH LINE 2 TIMES  
AIR TOOL INLET SIZE  
We recommend the following FilterLubricator–  
Regulator Unit:  
DRAIN REGULARLY  
COMPRESSOR  
(Dwg. TPD9051)  
ARO Model P29231110  
Lack of or an excessive amount of lubrication will  
affect the performance and life of this tool. Use only  
recommended lubricants.  
3
 
25  
24  
23  
22  
21  
20  
19  
18  
34  
33  
32  
29  
28  
27  
26  
NOT SHOWN  
30131 WRENCH  
04662532 WARNING LABEL (NONEU MODELS)  
39853 HOSE ASSEMBLY  
481761 WARNING LABEL (NONEU MODELS)  
49883 WARNING LABEL (EU MODELS)  
PART NUMBER FOR ORDERING  
PART NUMBER FOR ORDERING  
1
Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
36906  
14 Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
15 Roll Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
16 Spring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
17 Arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
45952  
Y1785  
45778  
45777  
45953  
36907  
32798  
36908  
36909  
36910  
36913  
36911  
36919  
2a Throttle and Bushing Assembly . . . . . . . .  
2b Head Assembly . . . . . . . . . . . . . . . . . . . . . .  
2
Head and Throttle Assembly (includes  
items 2a and 2b)  
Lever  
Assembly  
(includes  
items  
14  
thru  
17) . . . . .  
for non ‘‘–EUmodels . . . . . . . . . . . . . . . .  
for ‘‘–EUmodels . . . . . . . . . . . . . . . . . . .  
‘‘ORing (2 reqd) . . . . . . . . . . . . . . . . . . . .  
Roll Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Head and Throttle Assembly (includes  
items 1 thru 4)  
for non‘‘–EUmodels . . . . . . . . . . . . . . . .  
for ‘‘–EUmodels . . . . . . . . . . . . . . . . . . .  
Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Roll Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Throttle Valve Head . . . . . . . . . . . . . . . . . .  
‘‘ORing . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
‘‘ORing . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
369201  
499391  
Y32515  
36918  
18 Nozzle Plate . . . . . . . . . . . . . . . . . . . . . . . .  
19 Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
20 Sleeve . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
21 Impeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
22 Impeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
23 Ball Bearing . . . . . . . . . . . . . . . . . . . . . . . . .  
24 Impeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
25 Spacer . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
26 Housing  
for non ‘‘–EUmodels . . . . . . . . . . . . . . . .  
for ‘‘–EUmodels . . . . . . . . . . . . . . . . . . . .  
27 Ball Bearing . . . . . . . . . . . . . . . . . . . . . . . . .  
28 Spindle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
29 Lock Sleeve . . . . . . . . . . . . . . . . . . . . . . . . .  
32 Housing Cap . . . . . . . . . . . . . . . . . . . . . . . .  
33 Collet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
34 Nosepiece . . . . . . . . . . . . . . . . . . . . . . . . . .  
3
4
36920  
49939  
43885  
Y17844  
38947  
Y325211  
Y3255  
33032  
31125  
32886  
5
6
7
8
9
36901  
49901  
36913  
36902  
43881  
36912  
318124  
36914  
10 Stem Valve . . . . . . . . . . . . . . . . . . . . . . . . . .  
11 Spring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
12 Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
13 Throttle Valve Screw . . . . . . . . . . . . . . . . . .  
Head Assembly (includes items 7 thru 13)  
33023  
389491  
 
2b  
4
3
2a  
1
MODEL 7980A( )  
5
8
7
6
MODEL 79802  
17 16 15  
14  
9
10  
MODEL 79802EU  
11  
12  
13  
DISASSEMBLY/ASSEMBLY INSTRUCTIONS  
NOTICE  
_
_
Remove impellers (21, 22 and 24), sleeve (20), bearing (23)  
and spacer (25) from housing.  
Do not remove bearing (27) from spindle unless damage is ev-  
ident. To remove, press off of spindle.  
Models 79802( ) Remove valve screw (13) and seal (12),  
releasing spring (11), stem valve (10) and ‘‘Oring (9).  
Models 7980A( ) To remove ‘‘Orings (3), remove nut (1),  
releasing throttle and bushing assembly (2a).  
Never apply excessive pressure by a holding device which  
may cause distortion of a part.  
Apply pressure evenly to parts which have a press fit.  
Apply even pressure to the bearing race that will be press  
fitted to the mating part.  
Use correct tools and fixtures when servicing this tool.  
Dont damage ‘‘Orings when servicing this tool.  
Use only genuine ARO replacement parts for this tool. When  
ordering, specify part number, description, tool model number  
and serial number.  
ASSEMBLY  
_
_
_
Assemble bearing (27) to spindle (28), pressing on inner race  
of bearing.  
Assemble spindle into housing theu nose end, pressing on  
DISASSEMBLY  
_
_
Remove hose assembly (not shown) from the inlet of the tool.  
Insert A 1/8diameter pin thru the hole in the housing (26), lock  
sleeve (29) and spindle (28).  
Using a wrench on flats of housing cap (32), unthread and re-  
move housing cap (32) and lock sleeve (29).  
outer race of bearing.  
Assemble spacer (25), impeller (24), impeller (22) with bear-  
ing (23) and impeller (21) with sleeve (20) to spindle, securing  
with nut (19). NOTE: Assemble impellers with grooves in the  
direction shown on page 4.  
Assemble nozzle plate (18) and head to tool.  
Assemble lock sleeve (29) to housing, aligning hole in lock  
sleeve (29) with hole in housing.  
_
_
Using a wrench on flats of nosepiece (34), unthread and re-  
move from spindle, releasing collet (33).  
_
_
Models 79802( ) Place head (7) in a vise and, using a  
strap type wrench, unthread and remove housing (26).  
Models 7980A( ) Clamp wrench (30131) flatwise in a vise  
and place slot in air inlet of tool on wrench. Using a strap type  
wrench, unthread and remove housing (26).  
Remove nozzle plate (18).  
Insert a 1/8diameter pin thru the hole in housing (26) and  
_
Insert a 1/8diameter pin thru hole in housing and lock sleeve  
(29).  
_
_
Assemble housing cap (32) to housing, tightening securely.  
Assemble collet (33) and nosepiece (34) to spindle.  
Models 79802( ) Grease and assemble ‘‘Oring (9) to  
stem valve (10). Assemble stem valve (10) and spring (11) to  
head, securing with seal (12) and valve screw (13).  
_
_
spindle (28), and remove nut (19).  
Press spindle (28) out nose end of housing.  
_
6
 
M10  
25  
TYPICAL CROSS SECTION OF TOOL  
MODEL 79802  
MODEL 7980A( )  
7
 
TYPICAL CROSS SECTION OF TOOL  
MODEL 79802EU  
8
 
PN 4999482  
 

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