Cengar CL50 User manual



EUDeclaraonofConformity
Cengar. Ltd.
Springfield Works, Saddleworth Road
Halifax, England HX4 8LZ
We the undersigned, declare under our sole responsibility that the
following apparatus: ‐
Machine descripon: Cengar Air Saw
Machine Type: CL50 & CL75
Is in conformity with the following relevant EC legislaon:
Machinery Direcve 2006/42/EC
EN ISO 11148‐12:2012 ‐Handheld non‐electric power tools
EN ISO 13753: 2008‐Mechanical Vibraon and shock
Atex Direcve 2014/34/EU
Based on the following Harmonised Standards:
EN13463‐1:2009
And therefore complies with the essenal requirements of those
direcves.
Addional Informaon:
ATEX Coding II 2G T5 X
Technical filie lodged with:
Element Materials Technology (0891)
Technical File number: CEEX-0803 (DIF039)
Authorised Signature:
Technical Manager Roy Fletcher
Date: 02/11/16
Title of Signatory: General Manager ‐Cengar Ltd.

SPECIFICATIONS
Speed
Stroke
Air Consumpon
Air Pressure
Weight
Length
Height
Width
Vibraon Level averaged
Sound Pressure Level
Sound Power Level
Atex Cerficaon
1200 strokes per minute
45 mm
0.168m3/minute
5‐6 Bar
2.5 Kgs.
400 mm.
135 mm.
40.6 mm.
3.2 m/s2
82.9 db.
92.4 db.
CE II 2G T5 X
CengarAirSawModelsCL50&75
We recommend normal safe working pracces
should be followed as per the Health and Safety at
Work Act. We recommend that Eye protecon be
worn when using Cengar Saws
Werecommendnormalsafeworkingpracces
shouldbefollowedaspertheHealthandSafetyat
WorkAct,ortheappropriateNaonalandState
Laws.Werecommendthateyeandearprotecon
bewornwhenusingCengarSaws
Each machine is marked with a unique serial number, which contains the year and month of
construcon, along with an idenfier number.
Serial number example:
15 10 20
Year of construcon
Month of construcon
Idenfier number

CENGARSAWS
arehandheldreciprocangsawsdesignedtocutmetalsandplascsin
produconenvironmentsandcanbeusedinAtexzonedareaswhere
appropriate.Theyshouldonlybeusedbytrainedoperatorswhoare
responsibleforthesafetyofthemselvesandothersinthevicinity.Saw
bladesarecapableofcausingseriousinjury
Thinksafe Actsafe Besafe

LUBRICATION
Use Cengar Green Oil with longer lasng coang properes for best
results. Cengar Green Oil is specially prepared to: ‐
1 Emulsify the water generally found in compressed air lines.
2 Give perfect mist lubricaon.
3 Remain fluid at the low working temperature of compressed air tools.
4 Contains corrosion and oxidaon inhibitors.
Incorrect oils if used will soon “break down” forming a sludge which will
slow and eventually stop the acon of the saw. See maintenance details.
INSTALLATIONOFBLADES.
Before aempng to insert or change a blade, ensure that the air supply is
isolated by operang the isolaon valve provided. Loosen the retaining
grub screws with the key provided, insert blade through nosepiece so that
the teeth are cung on the pull stroke.
Locate the back screw in the hole in the end of the blade, for a posive
drive, the front screw can then be ghtened to grip the blade firmly.
BLADES
Cengar “Shaerproof” Bi‐Metal blades are specially prepared for use with
Cengar saws, to withstand the high operang speeds, and give maximum
cung life.
Choose the teeth per inch to suit the characteriscs of the material being
cut.
Choose pitch to ensure that at least 3 or 4 teeth are cung at the same
me.

OPERATINGTHESAW
We recommend that eye and ear protecon be worn, and normal safe working pracces
observed as per the Health and Safety at work act, and the appropriate Naonal and State
Laws.
Set the isolator to “on” posion, rest the blade on the material to be cut with the nosepiece
firmly abued to the work piece, with forward hand pressure, to prevent judder. Allow the
Cengar Saw to cut under its own weight, with just a slight downward hand pressure to keep the
teeth engaged in the cut. It is not necessary to put excessive downward pressure on the saw,
this only accelerates blade wear, and prevents the saw from operang efficiently. Normal
airline pressure of 5 to 6 Bar is required , any higher pressure only accelerates internal wear of
the machine.

WARNING/RISK
SPECIALCONDITIONSFORSAFEUSE
1. Suitably approved Stac dissipang or conducve air hose only to be aached to
the equipment and terminated to the air supply
2. Operator to ensure that there is less than 1 Ohm resistance between the ground at
the air source and any metallic object to be cut with the equipment
3. The Saw shall be firmly abued to the work piece before operaon and quenched
with liquid during operaon
The saw is HUMANOPERATORCONTROLLEDand THE OPERATORMUST
ENSURELUBRICATIONOFTHEBLADEATALLTIMES.
Theoperatormuststopthesawimmediatelyifthereisnolubricaon
4. The equipment shall be supplied from a clean air source in an area known to not
contain a potenally explosive atmosphere
MAINTENANCEANDGENERALHINTS
Always ensure sufficient oil in the tool, especially when the saw is in constant use.
The valve unit part no. 1139 is a vital component manufactured to close tolerances, and will
not tolerate abusive treatment. Lubricaon is essenal. Any neglect will seriously affect
performance of the saw, causing the saw to stall intermiently, or stop completely.
Very lile maintenance is required if the correct oil is used, but incorrect oil will soon
breakdown into sludge, slowing down the acon of the saw, necessitang its removal by use of
Cengar M.S. Cleaner. It is imperave that the saw is re‐oiled immediately aer cleaning, with
Cengar Green Oil.

CL50&75ExplodedView

ItemPartNo.DescriponNumber
Per Tool
ItemPartNo.Descripon Number
Per tool
19550Handle1191143Frontendcomplete1 29554Isolatorbody1201144SilencerGuard1 39553OilCap&Retainer1211143AFrontEndCap1 49555IsolatorNozzle12254160Frontcapscrews3 59559OilControlBall12354160Screws—Nosepiece2 69334ASpring1245045/5075Nosepiece(1/2”‐
3/4”)
1
79561‘O’RingLarge2251147CentreSha 1 89560‘O’RingSmall22655516Screwsforabove2 99557DétenteSpring1271150LinktoPistons1
109556ALockScrew1281148TopPiston1
2to109552IsolatorAssembly291152BoomPiston1
1151834RollPin‐Trigger2301147PintoLink2 1250034ValveinHandle1311147PintoPedestal1 139502Trigger1321153‐5Pedestal1 149506Filter/Gauze1335540Screw‐Handle/Front8 159538Gasket2345520Screw‐FrontLower2 161139ValveUnit1359560&9561Isolatorseals1 171141LBody136W55SerratedWasher10 181142Gasket—Frontend1375068Screw‐BladeGrip2

CL50FT&75FTExplodedView

ItemPartNo.DescriponNumber
Per Tool
ItemPartNo.Descripon Number
Per tool
19550FTHandle1191143Frontendcomplete1 29554Isolatorbody1201144SilencerGuard1 39553OilCap&Retainer1211143AFrontEndCap1 49555IsolatorNozzle12254160Frontcapscrews3 59559OilControlBall12354160Screws—Nosepiece2 69334ASpring1245045/5075Nosepiece(1/2”‐
3/4”)
1
79561‘O’RingLarge2251147CentreSha 1 89560‘O’RingSmall22655516Screwsforabove2 99557DétenteSpring1271150LinktoPistons1
109556ALockScrew1281148TopPiston1
2to109552IsolatorAssembly291152BoomPiston1
1151834RollPin‐Trigger1301147PintoLink2 1250034ValveinHandle1311147PintoPedestal1 139502FTTrigger1321153‐5Pedestal1 149506Filter/Gauze1335540Screw‐Handle/Front8 159538Gasket2345520Screw‐FrontLower2 161139ValveUnit1359560&9561IsolatorSeals1 171141LBody136W55SerratedWasher10 181142Gasket—Frontend1375068Screw‐BladeGrip2

IF THE SAW DOES NOT OPERATE
1 Check that the isolator is switched on.
2 Check air supply is correct.
3 Valve in handle (part no. 50034) could be worn and/or the seal is
broken, blocking an air passage. Check and replace if necessary.
4 Valve unit (Part No. 1139) may be stuck. IT IS IMPERATIVE TO REMOVE
THE SAW FROM THE AIRLINE BEFORE COMMENCING THIS CHECK.
Remove the two hexagonal nuts, push out valve piston with a pencil,
keeping note which end is top. Clean with oil only, NEVER USE
ABRASIVE. Clean valve bore with oil, re‐fit piston from top, keeping the
seal at the top end. Tighten nuts and reconnect saw to air supply.
REPLACEMENTOFPISTONSON
1 The old pistons must be removed through the front of the body (blade
end) aer removing handle and front, push the top piston forward
(boom piston rearward) this will bring the link shoulders clear of the
cylinder walls.
2 Remove the centre sha, by firstly removing the two retaining screws
(Part No. 55516) and pushing the shaout carefully.
3 Push the top piston forward, (the boom piston will follow) unl
everything comes out.
4 Before refing, ensure that each piston is a smooth sliding fit in it’s
own bore, without being able to feel slackness.
5 Insert the pistons in to the bores from the front, in the same staggered
relaonship as during removal, to ensure that the link does not
damage the cylinder bores.
6 Refit the centre shaand securing screws, using a thread lock
adhesive on the screws.
7 Check that the pistons slide smoothly over the full travel, without
scking.
8
REPLACEMENTOFISOLATORASSEMBLY
1 All the parts of the isolator are available separately, however
for ease of service, we offer an isolator assembly (Part No 9552)
complete with retaining screw and détente spring, this has the
seat bonded in place already, and can be fied in seconds.

PIPECUTTINGWITHTHECL50&75
A clamp kit can be fied to the CL saws, (Part No CCSG3) allowing the
machine to mount on pipes and secons.
To fit the parts required on the saw: ‐
1. remove the nosepiece and silencer
2. Fit the carrier over the front end tube, all the way to the back, and
clamp ght with the Allen key provided.
3. Slide on the new shortened silencer, and refit the nosepiece.
The clamp carrier can remain on the saw for normal use when the clamp is
not in use.
Alwaysremovethesawfromtheairlinebeforecommencingany
maintenancework.

OnlyfitgenuineCengarpartsandaccessories,orsafetymaybe
compromised
ClampCP1Spares

NEVER
1 NEVER fit breakable “All‐Hard” blades in Cengar saws, these
can shaer causing injury to yourself and others.
2 NEVER operate saw without wearing safety glasses
3 NEVER operate saw whilst you, or others are near the saw
blade, which can cause serious injury or trapping
4 NEVER use excessive force, this may increase vibraon
above safe levels
5 NEVER hold the Cengar saw in a vice by the body, this will
distort the bores, rendering the tool inoperave.
6 NEVER screw nameplates to the body, as the screws may
penetrate an airway or bore.
7 NEVER operate the Cengar saw without lubricaon.
8 NEVER be tempted to clean internal parts with anything other
than a clean lint free cloth, and M.S. Cleaner, or Cengar Green
oil.
9 NEVER modify Cengar saws or use non Cengar parts, this will
invalidate ATEX approval, and warranty.
ALWAYS
1 ALWAYS use Cengar green oil for best results. Keeping the saw
clean and well oiled will give excellent reliability, and a long
life.
2 ALWAYS use Cengar Bi‐Metal Shaerproof blades, for safety,
and best cung performance
3 ALWAYS isolate the air supply when changing blades.
4 ALWAYS wear eye protecon when using sawing machines.
5 ALWAYS keep the nosepiece abued to the work to prevent
excessive vibraon
6 ALWAYS isolate the machine when not in use
7 ALWAYS keep others away from the saw blade to prevent
injury or trapping
8 ALWAYS have machines vibraon tested annually to ensure
exposure is kept to the minimum

PowerFeedClampKits
Allows Cengar CL75 and JSZ saws to be used
hands‐free, to accurately cut pipes and
secons up to the capacity of the machine.
The force applied is infinitely variable, and
can be altered during the cut to allow for
varying thicknesses of material.
“in‐situ” work can be done in ght spaces or
very narrow trenches due to the compact
actuator design
Hand arm vibraon figures are reduced to
Zero
Cuts are kept square ready for weld joints
Needs only 95mm of pipe length exposed
Gives faster cung and extends blade life
Operators are free to stand clear, or prepare
Complete power feed clamp CP1P
As above plus CL75 mount kit CCSG3P
Retro fit kit for CP1 clamp. CP1RK

Oponalextras
9507CFA Oponal fall arrester plug to aach to spring balance
1139FA Oponal Fall Arrester Bracket to aach to spring balance
LUB01 Oponal In‐Line lubricator 28cc capacity, runs full day per fill

ACCESSORIES
SawBlades



MC 220/24 12 mm deep blade for general cung 24 TPI
MB 150/?? 150 mm long x 19 mm blade, pitches 10, 18, or 24
MB 200/?? 200 mm long x 19 mm blade, pitches 10, 18, or 24
MB 250/?? 250 mm long x 19 mm blade, pitches 10, 18, or 24
MB 300/?? 300 mm long x 19 mm blade, pitches 10, 18, or 24
Other sizes and types available on request
CengarGreenOil






GO 9107P Cengar Green Oil 250 ml plasc boles for all air tools
GO 9109 As above in 5 litre container
GO 9110 As above in 25 litre container
M.S.Cleaner
MS 9105 1 litre General purpose cleaning fluid for air tools.
MS 9125 50 ml. In a dropper bole. ‐Enough for 10 tools
AlwaysuseplentyofCengargreenoilaerwards.
Nosepiece
5045 Replacement nosepiece/blade guide for 12 mm deep blades
5075 Alternave nosepiece/blade guide for 19 mm deep blades

Cengar. Ltd.
Springfield Works, Saddleworth Road
Halifax, England HX4 8LZ
Tel: [phone] Fax: [phone]
[e-mail]
www.cengar.com
SERVICE
We offer a full factory repair and refurbishment service for
Cengar Saws, ‐normally within 5 working days. Quotaons at
no charge can be given before work is carried out.
DISTRIBUTORADDRESS
Original Instrucons Document No. MAN5075ENG/01 Issue 09 (July ‘15)