Cengar CS75 User manual

AIR SAWS FOR THE PROFESSIONAL
CS75
operating instructions

CENGAR AIR SAW MODEL CS75
2 3
EU DECLARATION OF CONFORMITY
We recommend normal safe working practices should be followed as
per the Health and Safety at Work Act, or the appropriate National
and State Laws. We recommend that eye and ear protection be
worn when using Cengar Saws.
SPECIFICATIONS
Speed 1200 strokes per minute
Stroke 45mm
Air Compsumption 0.168m3/minute
Air Pressure 5-6 Bar
Weight 2.5Kgs
Length 400mm
Height 135mm
Width 40.6mm
Vibration Level Averaged 3.2m/s2
Sound Pressure Level 82.9db
Sound Power Level 92.4db
Atex Certification II 2G Ex h IIC T3 Gb
Each machine is marked with a serial number, which contains the
year and month of construction, along with an identifier number.
Serial number example:
20 15 10
Year of construction
Month of constructionIdentier number
We the undersigned, declare under our sole responsibility that the following apparatus:
Machine Description Cengar Air Saw
Machine Type CS75
Is in conformity with the following relevant EC legislation:
Machinery Directive 2006/42/EC
Atex Directive 2014/34/EU
Based on the following Harmonised Standards:
EN ISO 4414:2010 EN ISO 80079-36:2016
EN ISO 80079-37:2016 EN 60079-0:2018
ADDITIONAL INFORMATION
ATEX Coding II 2G Ex h IIC T3 Gb
Notified Body
(Atex holding technical file)
Element Materials Technology Rotterdam B.V.
Voorerf 18, 4824 GN Breda, Netherlands
Identification Number 2812
Certificate No. EMT18ATEX 0032X
Authorised Signature
Date 06/02/2020
Title of Signatory Technical Manager - Cengar Ltd.
Springfield Works, Saddleworth Road, Greetland, Halifax HX4 8LZ
Special Conditions
of Safe Use
(on the certificate)
1. Suitably approved static dissipating or conductive air hose only to be attached 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 equipment shall be supplied from a clean air source in an area known to not contain a
potentially explosive atmosphere.
4. A lter must be tted to the supply compressor inlet to prevent dust airow
within the equipment.
5. To comply with ATEX certication regulations it is necessary to use Cengar
branded Blades with Cengar Saws.
1. Under normal working conditions can be used in a Zone 1 environment.
2. Classification based on tests cutting a selection of steels & composite materials (MB, MC, Yellow, JSZ ) Blades
And therefore complies with the essential requirements of those directives.
The following ignition hazards have been identified when the equipment is in use, hot surfaces, mechanical sparks,
electrostatic charging. These are mitigated as the equipment was designed to meet the requirements of protection
concept constructional safety “c”.

5
1. Always read the instructions.
2. Always wear safety glasses.
3. Unscrew oil cap and ll
with Cengar Green Oil.
Replace cap.
4. Isolate air supply before
tting blade by pushing
stop button in.
5. Fit the blade with the
teeth facing the machine.
Avoid handling the
blade teeth.
6. Secure blade by
tightening both grip
screws with supplied T key.
7. To use saw clamp
mounted please refer
to page 6
8. Connect to a 5-6 bar air
supply and pull out
stop button
9. Press trigger and apply
light downward pressure.
AVAILABLE BLADE PITCHES
Thickness
(mm) 24 TPI 18 TPI 14 TPI 10-14 TPI Varipitch 8 TPI
2 2 1 1 1 1
5 5 4 3 2 2
10 9 7 6 5 3
15 14 11 8 7 5
20 19 14 11 9 6
25 24 18 14 12 8
30 28 21 17 14 9
35 33 25 19 17 11
40 38 28 22 19 13
45 43 32 25 21 14
50 47 35 28 24 16
55 52 39 30 26 17
60 57 43 33 28 19
65 61 46 36 31 20
70 66 50 39 33 22
75 71 53 41 35 24
CENGAR BLADE SELECTION FOR
CUTTING SOLID MATERIAL
INSTRUCTIONS
4
AIR SAWS FOR THE PROFESSIONAL
CS75
operating instructions
availablein other languages on-line
The numbers in the coloured boxes indicates the actual number of teeth which will be in contact with the work
GENERAL RULE:
No less that 3 teeth in contact
Ideally between 6 and 12 teeth
in contact
No more than 24 teeth in contact
BLADE SELECTION
Pipe Diameter (mm) CS75 on clamp
50 200mm blade
100 250mm blade
150 300mm blade
Visit our website www.cengar.com to view our range of blades, clamps and accessories.
8
7CS75 HEAVY STEEL SECTIONS UPTO 150MM DIA USING 19MM (3/4”)
WIDE SHATTERPROOF BLADES
Type Length mm TPI
MB Blue for various steels 150, 200, 250 10/14, 18, 24
MB Blue for various steels 300 10/14, 14, 18
MBSS Silver for stainless steels 250, 300 18
DO’S & DON’TS
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 Shatterproof blades,
for safety, and best cutting performance.
3. ALWAYS isolate the air supply when changing blades.
4. ALWAYS wear eye protection when using saws.
5. ALWAYS keep the nosepiece hard against the work
piece to prevent excessive vibration.
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 vibration tested annually to
ensure exposure is kept to the minimum.
1. NEVER t breakable “All-Hard” blades in Cengar saws,
these can shatter causing injury to the operator 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 because this may increase
vibration above safe levels.
5. NEVER hold the Cengar saw in a vice by the body. This
will distort the bores, rendering the tool inoperative.
6. NEVER screw nameplates to the body, as the screws
may penetrate an airway or bore.
7. NEVER operate the Cengar saw without lubrication.
8. NEVER be tempted to clean internal parts with anything
other than a clean lint free cloth or Cengar Green oil.
9. NEVER modify Cengar saws or use non Cengar parts.
This will invalidate ATEX approval and warranty.

CS INSTRUCTIONS USING THE PIPE CLAMP
6 7
CS75 EXPLODED VIEW
ITEM PART NO. DESCRIPTION NUMBER
PER TOOL ITEM PART
NO. DESCRIPTION NUMBER
PER TOOL
19550 Handle 121 1143A Front End Cap 1
29554 Isolator body 122 54160 Front Cap Screws 3
39553 Oil Cap & Retainer 123 54160 Screws - Nosepiece 2
49555 Isolator Nozzle 1 24 5075 Nosepiece (3/4”) 1
59559 Oil Control Ball 1 25 1147 Centre Shaft 1
69334A Spring 1 26 55516 Screws for above 2
79561 ‘O’ Ring Large 2 27 1150 Link to Pistons 1
89560 ‘O’ Ring Small 228 1248 Top Piston 1
99557 Détente Spring 1 29 1252 Bottom Piston 1
10 9556A Lock Screw 1 30 1147 Pin to Link 2
2to10 9552 Isolator Assembly 31 1147 Pin to Pedestal 1
11 51834 Roll Pin-Trigger 2 32 1153-5 Pedestal 1
12 50034 Valve in Handle 133 5540 Screw-Handle Front 8
13 9502 Trigger 1 34 5520 Screw-Front Lower 2
14 9506 Filter/Gauze 1 35 9564 Isolator Seal 1
15 9538 Gasket 2 36 W55 Serrated Washer 10
16 9507 Valve Unit 1 37 5068 Screw-Blade Grip 2
17 1241L Body 1 38 9510 Piston Seal 2
18 1142 Gasket-Front End 1 39 CR1 Carrier for Clamp 1
19 1243 Front End Complete 140 -Serial Number-
20 SG1 Silencer Guard
1. When using the pipe clamp t the blade into the machine with the teeth
facing upwards and towards the machine. Avoid handling the blade teeth.
2. Secure blade by tightening both grip screws with supplied T key.
3. Fit the spigot (CP1/3) into the appropriate side of the clamp in the
front of the two holes in the clamp body and tighten securing nut.
4. Position the clamp on the pipe with the chain around the pipe and
tighten using the tommy bar (end of CP1/6). Ensure the clamp is
perpendicular to the pipe for an accurate cut (Fig.1).
5. Mount the machine onto the spigot whilst pressing down the
carrier latch. Slide the machine into the groove in the spigot.
Ensure it is correctly located.
6. When mounted correctly the blade should be under the pipe so
that the weight of the machine applies the cutting force to the
blade. (Fig.2).
7. Attach air supply (5-6 bar).
8. Press the trigger to start the machine and lock trigger in place by
sliding the trigger downwards. Gently bring the blade into contact
with the work gradually release the weight of the machine to allow
the cut to take place with out extra force.
9. When the cut is complete release slide the trigger upwards and
release the trigger. Remove air supply before attempting to
remove machine from spigot (reverse of 5 above).
8
7
FIGURE 2
FIGURE 1
(LUB01)
(9507CFA)

SERVICE
We offer a full factory repair
and refurbishment service for
Cengar Saws, normally within
5 working days. Quotations at
no charge can be given before
work is carried out.
DISTRIBUTOR
ADDRESS
Cengar Ltd.
Springfield Works,
Saddleworth Road,
Greetland, Halifax,
England HX4 8LZ
Tel: [phone]
Fax: [phone]
[e-mail]
www.cengar.com
Original Instructions Document No. MANCS75ENG/01 Issue 12 (Feb ‘20)