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• Thetoolcanalsobeoperatedbyholdingtriggerdepressed
andpushingcontacttripagainstworkpiece.Thisoperating
procedureprovidesrapid-firefastenerdriving.Neveroper-
atetoolunlesscontacttripisincontactwithworkpiece.
• Theairtoolisequippedwitharotatingswitch(Fig.5,No.51)
thatcanbeusedtolockthetrigger(L),settorapid-fire
mode(C),orsingle-firemode(S).Whentheswitchisset
to"S",thetoolwillnotdriveasecondfasteneruntilthe
triggerisfullyreleasedandpulledagain.
WARNING:Pullthetriggerfullyandkeepitdepressedto
ensurepropersequentialoperation.
• Whentheswitchisrotatedto"C",thetoolcandrivefasten-
ersinacontinuousrapid-firemode.Afastenerwillbefired
eachtimethecontacttripispressedagainstthework-
piece,aslongasthetriggerismaintainedinthepulled
position.
• Fortoenailingorsimilaroperations,itmaybenecessaryto
removethecontacttrippad(Fig.5,No.62).Toremovethe
pad,firstremovethemetalclampring(Fig.5,No.63).The
padandringmaybestoredonthestoragesleeve(Fig.5,
No.92)attachedtothetailofthebody.
WARNING:Allairpowerfasteningtoolsrecoilwhenoperat-
ed.Thisrecoiliscausedbyrapiddrivingofthefastener.Tool
maybouncefromrecoilcausingasecondunwantedfastener
tobedriven.Reducetoolbouncebyholdingtoolfirmlyin
handandpressingtoolgentlyagainstworkpiece.Thiswill
allowrecoiloftooltobouncetoolawayfromworkpiecepre-
ventingthedrivingofsecondfastener.
CONTACTTRIPADJUSTMENT
The contact trip (Fig. 5, No. 61) may be adjusted up or down to
vary the depth of the fastener in the workpiece. To adjust, loosen
socket head bolt (Fig. 5, No. 59) and raise or lower contact trip
to desired setting. Tighten bolt securely to maintain setting.
CONTACT TRIP STOP
When there are less than five fasteners left in the magazine,
the contact trip stop (Fig. 5, No. 53) will advance through a
hole in the contact trip bracket. The stop pin will prevent firing
by limiting the movement of the contact trip.
OPERATING PRESSURE
• Use only enough air pressure to perform the operation. Air
pressure in excess of that which is required will make the
operation inefficient and may cause premature wear or
damage to the tool.
• Determine minimum air pressure required by driving some
test fasteners into the workpiece. Set air pressure so that
test fasteners are driven on top of, but not into workpiece.
Workpiece will be damaged if fasteners are driven too deep.
COLD WEATHER OPERATION
CAUTION: Do not store in cold environment. Frost or ice
could form inside tool affecting operation and damaging tool.
Use a cold temperature lubricant, such as ethylene glycol,
when operating tool in freezing temperatures.
EXHAUST DEFLECTOR
Refer to Figures 4 & 5.
• Exhaust deflector can be positioned to point in any direction
(full 360 ° movement). Reposition deflector (Fig. 5, No. 2) by
grasping firmly and rotating to the desired position.
Figure 4 - Exhaust Deflector
Refer to Figure 5 (page 6).
LUBRICATION
Lubricate nailer daily with quality air tool oil. If no air line lubri-
cator is used, place five or six drops of oil into air inlet cap
(Fig. 5, No. 31) of tool everyday.
MAGAZINE AND PISTON/RAM
° Keep magazine and contact trip area clean and free of any
dirt, lint or abrasive particles.
The tip of the ram (Fig. 5, No. 17) can become dented or
rounded over time.
° Square off the tip of the ram with a clean, fine hand file to
extend the life of the ram and tool. Fastener firing will be
more consistent if the ram tip is kept clean and square.
SAFETY MECHANISM
Inspect contact trip safety mechanism daily for proper opera-
tion. Do not operate tool if mechanism is not operating properly.
With the switch (Fig. 5, No. 51) set to the single-fire mode (S),
perform the following procedures to test the safety mechanism:
• Leave trigger untouched while pushing contact trip into
workpiece. Tool must not fire.
° Pull trigger while contact trip is clear of work and pointed
away from operator and others. Tool must not fire.
• Push contact trip against work where fastener is needed
and flick trigger. The tool should drive only one fastener
each time the contact trip is pushed against workpiece and
trigger is flicked.
If contact trip mechanism does not operate properly,
repair tool immediately through Sears Service Center.
Replace any damaged or missing parts. Use the parts list to
order parts.
REBUILD KITS
Rebuild kits are available as spare parts, (see page 7). Tools
should be rebuilt if tool fails to operate properly after extended use.
See troubleshooting to determine required replacement parts.
Disconnect tool from air supply before attempting repair
or adjustment.
NOTE: When replacing O-rings or cylinder, lubricate with air
tool oil before assembly.
4
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