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Pre-Operation/Installation; Operation; Air Tool Hook Up; Air Hoses For Your Air Tool - Craftsman 875.168820 Owner's Manual

1/2 in. impact wrench
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Owner's
Manual
IVbde! No. 875 168820
Owner's
Manual
IVbde! No. 875 1688
Air Tool Hook Up
Before _e tool is connected to _e air
supply, clear 1be air hose of accumulated
dustand
moisture by running air freely
• rough _e air hose for _lOseconds.
Air Hoses for your Air Tools
Figure 1 Illuslzates a recommended
air
hose hook up.
A 3/Sinch ID air hose is required up to a
leng_ of 25feet
A 3/Sinch ID hose
Ionger_an
25feetwill
cause a pressure
drop and may impede performance.
If
more leng_ is required, a 1/zinch ID air
hose is recommended.
Be sure all hoses
and fitlJngs are _e correctsize
and
correctly secured before using _e tool.
Never carry a tool by _e hose or pull _e
hose to move _e tool or a compressor.
Keep hoses away from heal oil and sharp
edges. Replace any hose _atis
damaged,
weak or worn.
Small (home)shop
hard piping:
A piping diagram for a typical home shop
is shown.
Some helpful tips are:
Always use hoses and pipes rated for
higher pressure _an your system will
encounter.
Never use PVC pipes for
compressed
air piping systems as
explosion and serious injury may
result
The connection from _e compressor
to _e inilJal take_ffhard
pipe must
be a flexible hose in order to isolate
movement of _e compressor.
Route _e inilJal take4Dffline
(pipe)
as slzaight up _e shop wall and as
high as possible.
This will help
minimize water leaving _e
compressor
and lzaveling _rough
system
Slope _e main lines down at least
3/4 inch per lOfeet
of pipe away
from air compressor;
_is will draw
• e condensate
wi_ _e flowofair
and away from _e compressor.
Place _e firstdrop
as far from _e
compressor
as _e size of your shop
will allow (£Ofeetis
optimal, al_ough
unrealislJc fora small shop).
The
furtlqer _e drop, _e more _at
condensation
can occur, and _e
drier _e airwill
be when itreaches
• e water separator.
This tools power regulator valve may be
adjusted by rotalng _e switch, unlJl
desired oulputis
achieved. The center is
neural, to _e leftis reverse and to _e
rightis forward. The fur_eryou
go in
each direction _e more torque _atwill
be achieved.
The power can be regulated only in _e
forward direction. The tool will only
operate in full power in _e reverse
direclJon. Once a boltor fastener is
seated, impaclJng for longer 1ban 10
seconds could damage 1be impacting
mechanism. Ifittakes
Ionger_an
10
seconds to remove _e desired fastener,
itis recommended
_atyou
use of a
larger impactwrench.
In order to reduce _e amountof
water and contaminants
_atget
into
• e water separator, install _e take-
offline
on _e top of_e
main air
supply line for each air drop.
Figure 2
A drain line should be placed at_e
end of_e
main line for condensate
drainage.
Drain valves should be placed at_e
end of branch lines and _e drain
line, and drained daily.
Once a bolt or fastener is seated,
impacting
for longer
than five (5)
seconds
will cause excessive
wear and
possible
damage
to the impacting
mechanism.
If it takes longer
than five
seconds
to tighten or loosen your bolt
or fastener,
we recommend
the use of a
larger size impact
wrench.
E NG -6
ENG -7

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