Grizzly Impact Driver G5789 User Manual

model g5789/g5790  
13-piece 34  
"
impact Wrench Kit  
instruction manual  
Copyright © MAy, 2008 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.  
#jM10716 printed in tAiwAn  
 
7. avoid entanglements. do not  
wear loose clothing, gloves, neck-  
ties, rings, bracelets, or other jewel-  
ry, which may get caught in moving  
parts, when operating this tool. wear  
a protective hair covering to contain  
long hair.  
8. use correct air pressure.  
exceeding the maximum psi rating  
of this tool may cause unpredictable  
operation or bursting.  
9. disconnect air pressure  
before servicing, changing accesso-  
ries, or moving to another location.  
never leave this tool unattended  
when connected to air.  
10. secure tooling. Always verify  
tooling is secure before operation.  
11. sharp surfaces. do not  
place hands near the tooling sur-  
faces when in operation.  
12. remove adJusting Keys and  
Wrenches after use. these  
tools become dangerous projectiles  
if left on the tool when it is started.  
13. avoid flammables. do not use  
this tool around any flammables that  
may be ignited by sparks.  
14. secure WorK. use clamps or a  
vise to hold work when practical. it is  
safer than using your hand and frees  
both hands to operate tool.  
15. maintain tools With care.  
Keep tools lubricated and clean  
for best and safest performance.  
Follow instructions for lubricating  
and changing accessories.  
16. do not force tool. it will do  
the job better and safer at the rate  
for which it was designed.  
17. checK for damaged parts  
before using. Check for bind-  
ing and alignment of parts, broken  
parts, part mounting, loose bolts,  
and any other conditions that may  
affect operation. repair or replace  
damaged parts before operating.  
18. use good lighting. Keep work  
area well lighted. dark work areas  
increase risk of accidental injury.  
19. avoid unintentional opera-  
tion. Always disconnect air when  
not in use, and do not carry tool with  
hand on trigger.  
20. use  
the  
recommended  
accessories. Consult owners  
manual for recommended acces-  
sories. using improper accessories  
may increase the risk of injury.  
21. never alloW untrained  
users to use this tool While  
unsupervised.  
22. if you are unsure of the  
intended operation, stop  
using tool. seek formal training  
or research books or magazines that  
specialize in pneumatic tools.  
23. be aWare of hose location.  
hoses can easily become a tripping  
hazard when laid across the floor in  
a disorganized fashion.  
24. do not use under the  
influence of drugs or  
alcohol, or When tired.  
no list of safety guidelines is complete,  
because every work environment is  
different. always consider safety first  
and use common sense. failure to  
use this tool with caution and respect  
could result in serious personal  
injury.  
3
-2-  
Model g5789/g5790 13-piece 4" impact wrench Kit  
 
inventory  
1
4" npt  
Case  
3
Air  
4" impact wrench  
Fitting  
F
e
d
g
C
B
h
A
4mm hex wrench  
ITEM  
G5789  
26mm  
27mm  
29mm  
30mm  
32mm  
35mm  
36mm  
38mm  
G5790  
1"  
5mm hex wrench  
A
B
C
D
E
F
1-1/16"  
1-1/8"  
1-3/16"  
1-1/4"  
1-3/8"  
1-7/16"  
1-1/2"  
tool oil Bottle  
G
H
figure 1. Model g5789/g5790 inventory.  
3
Model g5789/g5790 13-piece 4" impact wrench Kit  
 
-3-  
operations  
g5789 specifications  
drive size............................................... 34  
"
no-load speed ........................ 4,500 rpM  
Maximum torque .......................... 500 ft/lb  
1
Air inlet size ......................... 38" or 4" npt  
Air Consumption.............................. 7 CFM  
operating pressure ......................... 90 psi  
Maximum operating pressure....... 120 psi  
weight ..............................................9.9 lbs  
read the manual before operation.  
become familiar with this tool, its  
safety instructions, and its operation  
before beginning any work. serious  
personal injury may result if safety  
or operational information is not  
understood or followed.  
g5790 specifications  
drive size............................................... 34  
"
no-load speed ........................ 4,500 rpM  
Maximum torque .......................... 500 ft/lb  
1
Air inlet size ......................... 38" or 4" npt  
Air Consumption.............................. 7 CFM  
operating pressure ......................... 90 psi  
Maximum operating pressure....... 120 psi  
weight ..............................................9.9 lbs  
lung/ear  
inJury hazard!  
Wear protective  
equipment when  
using this tool.  
air supply  
the impact wrench requires 90 psi to  
operate correctly. to improve air tool  
lifespan, use a filter/lubricator/regulator  
setup shown in figure 2.  
accidental  
start hazard!  
disconnect before  
service or tool  
changes.  
Quick  
Quick  
Connector  
Lubricator  
Regulator  
Connector  
Your  
Tool  
Air  
air pressure  
hazard!  
never exceed 120  
psi.  
Compressor  
Quick  
Coupler  
Quick  
Coupler  
Air Hose  
Filter  
figure 2. installed filter lubricator  
regulator.  
eye inJury  
hazard!  
Wear protective  
equipment when  
using these tools.  
3
-4-  
Model g5789/g5790 13-piece 4" impact wrench Kit  
 
otherwise, lubricate the impact wrench  
daily with a 2–6 drops of pneumatic tool  
oil directly into the tool's air inlet fitting, as  
shown in figure 3, before and after each  
use and every 2 hours of continued use.  
to change the direction of rotation, push  
the reverse valve toward the front of the  
gun for clockwise rotation and to the rear  
for counterclockwise rotation.  
torque setting  
reverse Valve  
figure 4. impact wrench control locations.  
daily maintenance  
these procedures should be done after  
each use:  
figure 3. Manual oiling.  
impact Wrench  
Before putting the impact wrench away,  
put 2-6 drops of oil into the air supply  
fitting and momentarily operate the tool  
to distribute the oil inside.  
3
your new 4" drive impact wrench (figure  
3) will generate up to 500 ft/lbs. of torque.  
only use thick-walled impact sockets  
with this air tool. the common thin-walled  
chrome sockets may explode if used as  
impact sockets, causing serious injury.  
wipe the tool exterior and sockets with  
a slightly oiled cloth. your goal is to  
leave a light film of oil on the tool to  
prevent rust.  
3
the impact wrench comes with a  
⁄ "  
8"–14  
npt adapter. For maximum results, we  
recommend using a 38" air fitting and hose.  
to change the torque setting, turn the  
torque setting knob from 0 to 9; 9 is the  
highest torque setting.  
3
Model g5789/g5790 13-piece 4" impact wrench Kit  
-5-  
 
g5789 impact Wrench  
&+  
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REF PART #  
DESCRIPTION  
REF PART #  
DESCRIPTION  
1
P8125001 HOUSING  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
42  
43  
44  
45  
46  
48  
P8125031 COMPRESSION SPRING  
P8125032 PIN  
2
P8125002 VALVE SLEEVE  
3
P8125003 REVERSE VALVE  
P8125004 TRIGGER  
P8125033 REAR GASKET  
P8125034 REAR COVER  
P8125035 CAP SCREW  
4
5
P8125005 ROLL PIN  
6
P8125006 VALVE BUSHING  
P8125007 O-RING  
P8125036 LOCK WASHER  
P8125037 OIL SEAL  
7
8
P8125008 STEEL BALL  
P8125038 FRONT RUBBER  
P8125039 EXHAUST DEFLECTOR  
P8125040 ANVIL COLLAR  
P8125042 PHLP HD SCREW  
P8125043 RUBBER BUSHING  
P8125044 REAR RUBBER  
P8125045 SET SCREW  
9
P8125009 COMPRESSION SPRING  
P8125010 AIR FITTING 3/8"-1/4" NPT  
P8125011 AIR VALVE KNOB  
P8125012 O-RING  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
P8125013 SET SCREW  
P8125014 SPACER  
P8125015 OIL SEAL  
P8125046 ROLL PIN  
P8125016 PILOT SET SCREW  
P8125017 ANVIL BUSHING  
P8125018 ANVIL 3/4" DRIVE  
P8125019 HAMMER CAGE  
P8125020 HAMMER PIN  
P8125021 HAMMER DOG  
P8125022 DRIVE CAM  
P8125023 O-RING  
P8125048 SPECIAL CAP SCREW  
*49 P8125049 O-RING KIT  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
PAW05M  
PAW04M  
HEX WRENCH 5MM  
HEX WRENCH 4MM  
P5789052 1/4" NPT AIR FITTING  
P5789053 SOCKET 3/4 DRV X 26MM  
P5789054 SOCKET 3/4 DRV X 27MM  
P5789055 SOCKET 3/4 DRV X 29MM  
P5789056 SOCKET 3/4 DRV X 30MM  
P5789057 SOCKET 3/4 DRV X 32MM  
P5789058 SOCKET 3/4 DRV X 35MM  
P5789059 SOCKET 3/4 DRV X 36MM  
P5789060 SOCKET 3/4 DRV X 38MM  
P5789061 CARRYING CASE  
P8125024 CYLINDER  
P8125025 ROTOR  
P8125026 ROTOR BLADE  
P8125027 FRONT PLATE  
P8125028 BEARING  
P8125029 REAR PLATE  
P8125030 WASHER  
* not included; for aftermarket purchase only  
3
-6-  
Model g5789/g5790 13-piece 4" impact wrench Kit  
 
g5790 impact Wrench  
&+  
(&  
('  
(-  
'-  
&*  
'(  
+&  
'+  
(,  
',  
&
'*  
)'  
')  
)*  
(.  
&,  
(
'.  
&*  
)%  
&(  
*
,
&)  
'-  
)
'
*(  
*)  
&-  
'&  
'%  
(+  
)(  
''  
)+  
*&  
+
&'  
-
.
&.  
))  
&&  
ꢀ).  
((  
**  
*+  
*,  
*%  
&%  
(*  
*'  
*.  
()  
(%  
)-  
*-  
+%  
REF PART #  
DESCRIPTION  
REF PART #  
DESCRIPTION  
1
P8125001  
P8125002  
P8125003  
P8125004  
P8125005  
P8125006  
P8125007  
P8125008  
P8125009  
P8125010  
P8125011  
P8125012  
P8125013  
P8125014  
P8125015  
P8125016  
P8125017  
P8125018  
P8125019  
P8125020  
P8125021  
P8125022  
P8125023  
P8125024  
P8125025  
P8125026  
P8125027  
P8125028  
P8125029  
P8125030  
HOUSING  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
42  
43  
44  
45  
46  
48  
*49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
60  
P8125031  
P8125032  
P8125033  
P8125034  
P8125035  
P8125036  
P8125037  
P8125038  
P8125039  
P8125040  
P8125042  
P8125043  
P8125044  
P8125045  
P8125046  
P8125048  
P8125049  
PAW05M  
PAW04M  
P5789052  
P5790053  
P5790054  
P5790055  
P5790056  
P5790057  
P5790058  
P5790059  
P5790060  
P5790061  
COMPRESSION SPRING  
PIN  
2
VALVE SLEEVE  
3
REVERSE VALVE  
TRIGGER  
REAR GASKET  
4
REAR COVER  
5
ROLL PIN  
CAP SCREW  
6
VALVE BUSHING  
O-RING  
LOCK WASHER  
7
OIL SEAL  
8
STEEL BALL  
FRONT RUBBER  
9
COMPRESSION SPRING  
AIR FITTING 3/8"-1/4" NPT  
AIR VALVE KNOB  
O-RING  
EXHAUST DEFLECTOR  
ANVIL COLLAR  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
PHLP HD SCREW  
RUBBER BUSHING  
REAR RUBBER  
SET SCREW  
SPACER  
SET SCREW  
OIL SEAL  
ROLL PIN  
PILOT SET SCREW  
ANVIL BUSHING  
ANVIL 3/4" DRIVE  
HAMMER CAGE  
HAMMER PIN  
HAMMER DOG  
DRIVE CAM  
SPECIAL CAP SCREW  
O-RING KIT  
HEX WRENCH 5MM  
HEX WRENCH 4MM  
1/4" NPT AIR FITTING  
SOCKET 3/4 DRV X 1"  
SOCKET 3/4 DRV X 1-1/16"  
SOCKET 3/4 DRV X 1-1/8"  
SOCKET 3/4 DRV X 1-3/16"  
SOCKET 3/4 DRV X 1-1/4"  
SOCKET 3/4 DRV X 1-3/8"  
SOCKET 3/4 DRV X 1-7/16"  
SOCKET 3/4 DRV X 1-1/2"  
CARRYING CASE  
O-RING  
CYLINDER  
ROTOR  
ROTOR BLADE  
FRONT PLATE  
BEARING  
REAR PLATE  
WASHER  
* not included; for aftermarket purchase only  
3
Model g5789/g5790 13-piece 4" impact wrench Kit  
-7-  
 

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