Grizzly Automobile Parts G8720 User Manual

MODEL G8720  
312 TON  
HIGH LIFTING JACK  
INSTRUCTIONS  
Specifications  
Max. lifting load......... 312 u.s. tons (7000 lbs.)  
required Minimum lifting load .............. 110 lbs.  
Maximum lifting height..................................48"  
To reduce the risk of serious injury when  
using this jack:  
1. Only use this jack for lifting and do not  
exceed the design specifications.  
top  
Connecting  
plate  
Jack Bar  
2. DO NOT alter any part of this jack  
or use it for any purpose it was not  
designed for.  
3. DO NOT lift vehicles with curved or  
tubular bumpers that will slip off the  
lifting nose. Always position the lifting  
nose under a flat, stable part of the  
vehicle that will safely handle the load.  
lifting nose  
& assembly  
Jack handle  
Jack Base  
4. Always stabilize and chock the load  
before positioning the jack underneath  
it.  
5. Make sure the base of the jack is on a  
flat, solid surface that can hold the load  
and that will not allow the jack base to  
slip.  
Figure 1. Model g8720 identification.  
6. NEvER place any part of your body  
under a load lifted by this jack.  
Overview  
7. DO NOT push the load off the jack.  
Lower the load slowly and carefully and  
make sure all bystanders are clear of  
the load.  
the Model g8720 3-1/2 ton high lifting Jack  
is designed to lift a load higher than the typical  
automobile jack. the lifting assembly "walks" the  
lifting nose along the jack bar using two climbing  
pins that move in and out of the holes on the bar  
as the jack handle is raised and lowered.  
8. DO NOT use extension devices on the  
jack handle.  
Copyright © oCtoBEr, 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.  
#ts11148 printEd in China  
 
B
a
To avoid serious personal injury or prop-  
erty damage if the jack should fail under  
load, NEvER operate the jack with worn or  
damaged parts. Always thoroughly inspect  
the jack before using it and perform regular  
maintenance as instructed in this docu-  
ment.  
F
C
Maintenance  
E
d
the jack may bind if the holes in the jack bar  
are clogged or if the moving parts of the jack are  
dirty, rusty, or without lubrication. always keep  
your jack in good condition and perform regular  
maintenance as described below to ensure safe  
and efficient operation.  
Figure 3. Model g8720 lubrication points.  
A. direction latch pivot bolt.  
b. Jack handle pivot bolt and pin.  
C. shear bolt.  
Lubrication  
use a non-flammable solvent to clean the entire  
jack, especially the holes along the entire length  
of the jack bar, then apply a small amount of white  
lithium grease to the moving parts referenced in  
Figure 3 and the following descriptions.  
D. Jack bar front and back edges.  
E. Bottom climbing pin and spring.  
F. top climbing pin and spring.  
Note: Motor oil or other types of grease will gather  
dirt and debris that will clog the moving parts of  
the jack.  
Storage  
raise and clip the jack handle to the jack bar,  
then store the jack in an upright position in a dry,  
protected location.  
If you need help with your new high lifting jack,  
call our Tech Support at: (570) 546-9663.  
g8720 312 ton high lifting Jack  
-3-  
 
parts breakdown  
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REF PART #  
DESCRIPTION  
REF PART #  
DESCRIPTION  
1
2
3
4
5
6
7
8
9
10  
P8720001 TOP CLAMP-CLEVIS BOLT  
P8720002 TOP CLAMP-CLEVIS  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
P8720011 BASE  
P8720012 CLIMBING PIN SPRING  
P8720013 CLIMBING PIN  
P8720003 STEEL STANDARD (BAR)  
P8720004 STEEL HANDLE W/COTTER PIN  
P8720005 HANDLE SOCKET  
P8720006 PIN  
P8720014 CROSS PIN  
P8720015 REVERSING SWITCH CAM BAR  
P8720016 CAP SCREW W/WASHER  
P8720017 REVERSING LATCH  
P8720018 REVERSING SWITCH SPRING  
P8720019 LARGE RUNNER  
P8720007 HEX BOLT  
P8720008 CONNECTING ROD  
P8720009 SMALL RUNNER  
P8720010 SCREW BOLT  
P8720020 RUNNING GEAR ASSEMBLY  
g8720 312 ton high lifting Jack  
 
-4-  

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