Cleco CH-22 Installation and operating instructions

1
Operation & Service Manual
823049 6/01
CH SERIES CHIPPERS
2 1/4
3 1/4
22
32
Round
Hexagon
RD
HX
CH
Stroke:
Nose Type :
Series:
Cleco Type for CH Models Only
Quick Change for CH Round Collar Chisels Only
C
Standard for CH Models OnlyH
Q
Retainer :
CH --
-
XX XX X
NORTH AMERICA EUROPE
CooperTools
P.O. Box 1410
Lexington, SC 29071
Cooper PowerTools GmbH & Co.
Postfach 30
D-73461 Westhausen

2
throttle moves freely and returns to closed position). Being
carefulnottoendangeradjacentpersonnel,cleartheairhose
of accumulated dust and moisture. Attachment of a quick-
disconnect air coupling directly to the inlet threads of a
percussion tool can cause wear and failure of the coupling.
Should the coupling fail, severe injury can result from the
hose end violently whipping about. If a quick-disconnect air
coupling is used, separate the coupling from the tool with a
whip hose (1.5 feet minimum). Only use a whip hose with
fittings of hardened steel or other material which is at least
comparablyresistantto shock.Donot usehoseto liftorlower
tool.
Cracked chisels or implements are
hazardous. Visually inspect the chisel
orimplementforcracksbeforeuse.Makeapracticeofhaving
all chisels magnifluxed before resharpening. Destroy and
discard any chisel or implement that shows a crack.
Correct selection of the chisel or other implement is impor-
tant. Dull edges on the chisel or moil point cause the energy
of the percussion blow to be absorbed by the tool itself,
instead of the workpiece, increasing the chance of chisel
breakage. When operating percussion tools in explosive or
flammable environments, use only non-sparking chisels or
implementssuchasthosemade fromberylliumcopper.Also,
do not use cupped rivet sets with Cleco percussion tools to
drive nails. Blows not centered on the nail can cause the nail
to ricochet off the work and strike the user.
Before removing a tool from service, after completing a job,
orchangingchiselsorotherbits,make suretheairlineisshut
offand drainedofair. Thiswill preventthetool fromoperating
if
Safety Recommendations
Foryoursafetyandthe safetyofothers,readand understand
the safety recommendations before operating any percus-
sion tool.
Always wear protective equipment and clothing.
For additional information on eye protection, refer to Federal
OSHA Regulations, 29 CFR, Section 1910.133, Eye and
Face Protection, and ANSI Z87.1, Occupational and Educa-
tional Eye and Face Protection. This standard is available
fromtheAmericanNationalStandardsInstitute,Inc.,11West
42nd Street, New York, NY 10036.
Hearing protection is recommended in high noise areas
(above85 dBA). Closeproximity ofadditionaltools, reflective
surfaces, process noises, and resonant structures can sub-
stantially contribute to the sound level experienced by the
operator. For additional information on hearing protection,
refertoFederalOSHARegulations,29CFR,Section1910.95,
Occupational Noise Exposure, and American National Stan-
dards Institute, ANSI S12.6, Hearing Protectors.
Gloves and other protective clothing should be worn as
required.Properlyfitted glovescushionvibration andprotect
the fingers from pinching, scuffing and scraping and must be
used when guiding the chisel on a workpiece.
Cleco percussion tools are designed to operate on 90 psig
(6.2 bar) maximum air pressure. Excessive air pressure can
damage the plunger and increases sound levels. Installation
ofafilter-regulator-lubricatorintheairsupplylineaheadofthe
tool is highly recommended. Before the tool is connected to
the air supply, check the throttle for proper operation (i.e.,
WARNING
!
WARNING!
Explosive Hazard.
Use only nonsparking chisels or
implements in explosive or
flammable environments.
Impact Hazard. Ejected chisels can cause
serious injury or even death.
Disconnect air before changing chisels.
Do not operate unless chisel is in contact
with workpiece.
Do not point tool in direction of any person.
Use safety retainers on tool and retainer
type chisels.
WARNING!
Erect barriers to protect persons in
surrounding or lower work areas.
WARNING!
Impact resistant eye protection
must be worn while operating
or working near this tool.
CAUTION!
Personal hearing protection is
recommended when operating
or working near this tool.
WARNING!
Compressed air hazard.
Compressed air can cause loss
of eyesight, bleeding or injection
of foreign material into the body
or blood.
Never use compressed air to clean
off clothing or direct it at any person.
Quick Disconnect Coupling Quick Disconnect Coupling
Do not use! OK
Coupling Nipple Whip Hose
Coupling Nipple

3
contribute to the conditions. Any user suffering prolonged
symptoms of tingling, numbness, blanching of fingers, clum-
siness or weakened grip, nocturnal pain in the hand, or any
other disorder of the shoulders, arms, wrists, or fingers is
advised to consult a physician. If it is determined that the
symptoms are job related or aggravated by movements and
postures dictated by the job design, it may be necessary for
the employer to take steps to prevent further occurrences.
These steps might include, but are not limited to, reposition-
ingtheworkpieceorredesigningtheworkstation,reassigning
workerstootherjobs,rotatingjobs,changingworkpace,and/
or changing the type of tool used so as to minimize stress on
the operator. Some tasks may require more than one type of
tool to obtain the optimum operator/tool/task relationship.
• Tasks should be performed in such a manner
that the wrists are maintained in a neutral
position, which is not flexed, hyperextended,
or turned side to side.
• Stressful postures should be avoided. Select
a tool appropriate for the job and work
location.
Work gloves with vibration reducing liners and wrist supports
are available from some manufacturers of industrial work
gloves. Tool wraps and grips are also available from a
numberofdifferentmanufacturers.Thesegloves,wraps,and
wrist supports are designed to reduce and moderate the
effects of extended vibration exposure and repetitive wrist
trauma.Since theyvarywidely indesign, material,thickness,
vibration reduction, and wrist support qualities, it is recom-
mended that the glove, tool wrap, or wrist support manufac-
turer be consulted for items designed for your specific appli-
cation. Proper fit of gloves is important. Improperly fitted
gloves may restrict blood flow to the fingers and can
substantially reduce grip strength.
This information is a compilation of general safety practices
obtained from various sources available at the date of pro-
duction. However, our company does not represent that
everyacceptablesafety practice isconsideredherein, or that
abnormal or unusual circumstances may not warrant or
require additional procedures. Your work may require addi-
tionalspecificsafetyprocedures.Followtheseproceduresas
required by your company. For more information, see the
latest edition of ANSI B186.1, Safety Code for Portable Air
Tools, available from the American National Standards Insti-
tute, Inc., 11 West 42nd Street, New York, NY 10036.
the throttle is accidently engaged. Use of a self-relieving
valve within reach of the user of the tool is highly recom-
mended.
Do not operate or trigger any percussion tool unless the
chisel, scaling tool, rivet set, or other implement is in the tool
andincontactwiththeworkpieceorworksurface.Neverpoint
any percussion tool in the direction of another person or
yourself, or deliberately eject a chisel. Failure to do so can
cause serious injury and/or damage the tool.
Chisel or rivet set retainers are recommended and furnished
asstandard equipment.Periodic inspection of the retainer
forwearordamageisrecommended since these devices
can receive heavy abuse, particularly if the tool is run off
the workpiece. Damaged retainers are dangerous, and
can allow the ejection of a chisel or other implement.
They must be replaced as necessary. Only use safety
retainer type chisels, as shown in the operating instruc-
tions and service manual. Also, it is good safety practice to
erect suitable barriers to protect persons in surrounding or
lower work areas from possible ejected tools.
Some individuals
may be suscep-
tible to disorders
of the hands and
arms when per-
forming tasks
consisting of
highly repetitive
motions and/or
exposure to ex-
tended vibration.
Cumulative
trauma disorders
such as carpal tunnel syndrome and tendonitis may be
caused or aggravated by repetitious, forceful exertions of the
hands and arms. Vibration may contribute to a condition
calledRaynaud’sSyndrome.Thesedisordersdevelopgradu-
ally over periods of weeks, months, and years. It is presently
unknown to what extent exposure to vibrations or repetitive
motions may contribute to the disorders. Hereditary factors,
vasculatory or circulatory problems, exposure to cold and
dampness, diet, smoking and work practices are thought to
Safety Recommendations
Repetitive work motions and/or vibration
may cause injury to hands and arms.
Use minimum hand grip force.
Keep body and hands warm and dry.
Avoid anything that inhibits blood circulation.
Avoid continuous vibration exposure.
Keep wrists straight.
Avoid repeated bending of wrists and hands.
WARNING!
BAD POSTURE
GOOD POSTURE
0
90
45
Self-Relieving
Valve
Filter
Regulator Lubricator
Tool
Hose
Coupling
INDIVIDUAL WORK STATION
Quick Disconnect
Coupling

4
OPERATING INSTRUCTIONS
Iftheoperationofthechipperbecomessluggishorerratic,
pour one teaspoon of kerosene into the air inlet and
operate the tool for a few seconds. Lubricate the tool as
explained above after flushing.
STORAGE
Intheeventthatitbecomesnecessarytostorethetoolfor
an extended period of time (overnight, weekend, etc.), it
should receive a generous almount of lubrication at that
timeandagain when returnedtoservice. Store thetoolin
a clean and dry environment. Alternatively, chippers and
scalers may be put in a bucket of kerosene or light oil for
extended periods of storage such as weekends or plant
shutdowns. The tool should always be lubricated before
storage and when being returned to service.
CHISEL INSTALLATION & REMOVAL
Turn off the air and drain the air
hose before installing or removing
anychiselorimplement.Followthe
procedurebelowandonnextpageforinstallinganychisel
or implement. Reverse the procedure for removal.
The CLECO "CH" series chipper is designed to operate
on 90 psig air pressure using a 1/2" I.D. hose up to 8' in
length. If additional length is required, a 3/4" I.D. or large
hose should be connected to the 1/2" hose.
The air hose should be cleared of accumulated dirt and
moisture,thenone-half(1/2)teaspoonof10Wmachineoil
shouldbepouredintothetool'sairinletbeforeconnecting
the hose to the tool.
Important: The handle should be checked after the first
eight hours of operation and occasionally thereafter to
make sure it is tight. Torque to 300 ft. lbs.
LUBRICATION
Anautomaticin-linefilter-lubricatorisrecommendedasit
increases tool life and keeps the tool in sustained opera-
tion.Thein-linelubricatorshouldberegularlycheckedand
filled with a good grade of 10W machine oil. Never use a
heavy oil, as this will cause a loss of efficiency. Proper
adjustmentofthein-linelubricatorisperformedbyplacing
asheetof papernexttotheexhaustportsandholdingthe
throttleopenforapproximately30seconds.Thelubricator
isproperlysetwhenalightstainofoilcollectsonthepaper.
Excessive amounts of oil should be avoided.
Eye protection must be worn when disassembling tool or when air line is turned on. A
self-relieving valve in close proximity to the repair station to bleed off air is recom-
mended.
INSTALL RETAINER WITH
CHISEL ONTO BARREL WHILE
ALIGNING SLOT IN RETAINER
WITH GROOVE ON BARREL.
INSERT CHISEL INTO
RETAINER AND ROTATE
RETAINER 1/4 TURN
(90°) IN EITHER DIRECTION.
INSERT SPRING INTO SLOT
IN RETAINER UNTIL ONLY
TAB ON SPRING IS EXPOSED.
TAB
LOCK SPRING
BARREL
RETAINER
CHISEL
STANDARD RETAINER
GROOVE
SLOT
WARNING
!
WARNING
!

5
SERVICE INSTRUCTIONS
DISASSEMBLY
To disassemble the tool, place the flats of the barrel in a
vise with the handle, No. 833157, facing upward. Using a
pair of spreader pliers, spread the exhaust deflector, No.
834674, open and slip it down on the barrel far enough to
allow the handle locking ring to be disengaged from the
handle. Unscrew the handle from the barrel and remove
thevalveblockbutton,No.832172,valve,No.832195,and
valveblock, No. 832506. Remove thebarrel from the vise
and invert it, allowing the plunger to fall out. To disas-
semble the throttle valve, unscrew throttle valve cap, No.
833155,andremovethethrottlevalvespring,No.834852,
and throttle valve, No. 834854. Throttle valve pin, No.
834853, will drop out of throttle valve pin bushing, No.
832210.
Remove handle bushing, No. 833471, and wash the inlet
screeninasolvent.Blowairthroughthescreeninreverse
of normal air flow to remove any foreign matter. If the
screen is torn or damaged, it should be replaced.
REASSEMBLY
Thetoolisreassembledinthereverseorderofdisassem-
bly.Washallpartsthoroughlyinasolventbeforereassem-
bly. Prepare the threads on the barrel and in the handle
with a high grade thread lubricant before assembling.
Make sure the threads are clean before lubricating. The
handle,No.833157,shouldbetorquedto300ft.lbs. After
reassembly, place teaspoon of 10W machine oil in the
handle bushing before attaching the air hose. This will
insureimmediatelubricationofallpartsassoonastheair
is applied. After the air hose is connected to the tool and
the air supply turned on, there should be a slight amount
offreeplayinthe throttle lever, No. 834855,lackofwhich
will allow the tool to run without being throttled. If no free
playis evident, theflat end of thethrottle valve pinshould
be ground off until there is a small amount of free play in
the throttle lever.
Eye protection must be worn when disassembling tool or when air line is turned on. A
self-relieving valve in close proximity to the repair station to bleed off air is recom-
mended.
TAB
LOCK SPRING
INSTALL RETAINER ON BARREL.
ALIGN SLOT IN RETAINER WITH
GROOVE ON BARREL. BARREL
RETAINER
INSERT SPRING INTO SLOT
IN RETAINER UNTIL ONLY
TAB ON SPRING IS EXPOSED.
CHISEL
INSERT CHISEL INTO RETAINER
UNTIL LATCH SPRING RISES.
ROTATE CHISEL 1/4 TURN (90°)
IN EITHER DIRECTION.
RETAINER AND CHISEL
ARE NOW LOCKED INTO
POSITION.
OPTIONAL CLECO TYPE RETAINER
GROOVE
SLOT
INSTALL RETAINER ONTO BARREL
WITH SLOT IN RETAINER AND
GROOVE ON BARREL IN ALIGNMENT.
INSERT SPRING INTO SLOT IN
RETAINER UNTIL ONLY TAB
ON SPRING IS EXPOSED.
TAB
LOCK SPRING
BARREL
CHISEL
PULL RELEASE COLLAR BACK
AND INSERT CHISEL.
RETAINER
RELEASE COLLAR SHOULD RETURN TO
ORIGINAL LOCATION WHEN COLLAR OF
CHISEL IS BEHIND BALLS IN RETAINER.
OPTIONAL QUICK CHANGE RETAINER FOR ROUND COLLARED CHISEL ONLY
RELEASE COLLAR
GROOVE
SLOT
WARNING
!

6
PART NO.
833163
834774
834775
834776
834871
834872
834873
834874
834875
834876
834877
839033
QTY.
1
1
1
1
1
1
1
1
1
6
1
1
NAME OF PART
Standard Retainer (incl. 839033)
Optional Cleco Type Retainer
Optional Cleco Type Latch Spring
Optional Cleco Type Latch
Optional Quick Change Retainer Body
Optional Quick Change Retainer Sleeve
Optional Quick Change Retainer Spring
Optional Quick Change Retainer Release Collar
Optional Quick Change Retainer "O"-Ring
Optional Quick Change Retainer Ball
Optional Quick Change Retainer Lock Spring
Standard and Optional Cleco Type Retainer Lock Spring
The Retainer subassemblies can be purchased using these Part Numbers:
Standard Retainer —833163
Optional Cleco Type Retainer —831847
Optional Quick Change Retainer for Round Collar Chisel Only —831861
"CH" SERIES CHIPPER RETAINERS
OPTIONAL CLECO TYPE RETAINER - 831847
834775
834776
834774 839033
QUICK CHANGE RETAINER FOR ROUND COLLAR CHISEL ONLY - 831861
834876
834874 834872 834873 834871 834875 834877
839033
STANARD RETAINER - 833163
833163

7

8
PART NO.
203185
203419
832125
832172
832195
832210
832215
832506
832540
832726
832964
832965
833155
833157
833471
834276
834293
834674
834852
834853
834854
834855
834856
834857
836178
843656
844306
869975
QTY.
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
NAME OF PART
Warning Label
Warning Label
Throttle Lever Pin
Valve Block Button
VaIve
Throttle Pin Bushing
Handle Locking Ring
Valve Block
Throttle Lever Stop Pin
Valve Block Dowel Pin
Tool Nose (Std. - Round)
Tool Nose (Opt. - Hex)
Throttle Valve Cap
Handle (incl. 832210, 836178)
Inlet Bushing
CH-32 Plunger
CH-22 Plunger
Exhaust Deflector
Throttle Valve Spring
Throttle Valve Pin
Throttle Valve
Throttle Lever
CH-22 Barrel
CH-32 Barrel
Handle Bushing
Air Inlet Screen
"O''- Ring 5/16" (7.49mm) x 7/16" (11.11mm)
Warning Tag
The complete handle can be purchased as a subassembly. Code No. 831373.

9
NOTES

10
NOTES

11
NOTES

12
CooperTools
670 Industrial Drive
Lexington, SC 29072
Phone: [phone]
Fax: [phone]
www.cooperindustries.com