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New Master 35 Petrol/Gasoline Impact Wrench 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 

START/STOP OPERATION

 

1.  FUEL MIXTURE 

    Mix = 1:25 Mineral oil  
    Mix = 1:50 Synthetic oil    

 

 

    with Unleaded Petrol/ 
    Gasoline minimum  
    89 Octane, Gasohol with 
    less than 10% Ethanol or E10 fuel  

 

 

    Mix Oil and Petrol/Gasoline thoroughly in a  
   

separate 

Safety container before filling the  

    tank.  Only fill in a 

well ventilated

 area and  

    away from equipment which generate sparks  
    e.g. Rail Saws and Grinders. 

    REMEMBER: 

Using 

too  much 

Oil  will  oil 

    up  the  Spark  Plug  and 

too  little 

causes 

    extra wear leading to Engine damage. 
 

2

PREPARATION FOR START-UP  

 

  

Check  oil  level  in  the  gear  box  is  correct 

 

and  all  nuts  and  screws  are  tight.  Fill  the 

 

fuel  tank  with  the  correct  mixture.  Check 

 

starter  cord  is  not  worn  and  Anvil  for  wear 

 

using our No Go Gauge. 

 

3.  STARTING THE WRENCH 

1

  Place Wrench on a 

SOLID 

base and take a 

 

comfortable stance. 

2

  Slide  Accessory  onto  Square  Drive  and 

 

secure  with  a  Steel  Pin  and  Rubber  Ring  or 

 

appropriate retaining device. 

 

3

  Set Gear Lever (6) to 

NEUTRAL (N).   

 

 

4

  Push in De-Compression  

 

Button (2) to make  

     starting easier. 
 

 

 

 

5

  Set Control Switch (1)  

     to Choke 
 

 

 
 

6

    Place heel of boot on  

     the extended Handle 
     base

 

or Roll Bar and  

     pull to activate Choke    
     and engine firing cycle.   
 

7

   After engine fires set  

 

     Control Switch to RUN  
     and pull Recoil Starter  
     again. The engine should 
     start with one or two pulls. 
 

 

 
 

8

   

Repeat step 3 

 

A few pulls are sufficient  

 

to start the engine. 

     If the engine 

“dies”,  

 

please repeat steps  

 

2, 3, 4 and 5. 

    The De-Compression  
 

Button (2) automatically  

     goes off when the engine  
 

fires. 

9

  When the engine is  

 

running pull the trigger to  

 

achieve the engine idling. 

 
Note :  If  the  engine  is  warm  it  is  only  necessary 

to engage the Choke for a few seconds.

 

DO NOT 

use the De-Compression Button 

again 

 
4.  OPERATING THE WRENCH 

 

Always follow the 

"SAFETY PRECAUTIONS" 

 

shown on Page 2. 

 

Position  Wrench  and  Socket  over  fastener  to 

 

be  tightened/loosened  and  keep  all  three  in 

 

a straight line. 

 

Select  the  gear  by  moving  gear  lever  (6)  fully 

 

90

o

 to position F or R. 

 
5.  STOPPING THE WRENCH 
 

Release throttle trigger and let   Motor  return 

 

to idle. Set Gear lever to Neutral position and 

 

turn off Motor by moving Control Switch to  the 

 

STOP

 position. 

 

 

6.  RE-FUELLING 
 

ALWAYS 

open  the  Fuel  Filler  Cap 

carefully 

 

to   release  any  pressure  which  may  have 

 

built up.    

 

Never  re-fuel  when  the  Engine  is  running 

 

or in a confined space. 

 

Do  not  smoke  or  attempt  to  refill  in  an  area 

 

where  there  may  be  sparks  from  other 

 

machines. 

 

Avoid spillage. 

 

Cold  fuel  expands  in  a  hot  tank.  Do  not 

 

attempt to fill fuel tank if it is hot.

 

 

7.  TUNING 
 

The  Carburettor  is  Factory  set  to  meet 

 

International  Emission  level  regulations  with 

 

Screws  locked  to  permit  only  a  half  turn 

 

movement.

 

 

Do  not  force  them 

further  or  the  plastic  cap 

 

locks will break. 

 

Emission levels could then be exceeded.

 

 

 

 

Tuning  should  only  be  attempted  by  a 

 

trained  and  competent  person  i.e.  Plant 

 

Fitter 

 

 

 

 

 

 

 

Summary of Contents for MASTER 35

Page 1: ...NEW MASTER 35 PETROL GASOLINE IMPACT WRENCH Couper Street Glasgow G4 0DL United Kingdom Tel 44 0 141 552 5591 Fax 44 0 141 552 5064 E mail enquiries airtecinternational co uk ...

Page 2: ... of the Master 35 Petrol Gasoline Impact Wrench 1 Square Drive powered by special Emak Engine Serial No MA Detailed information on weight noise vibration etc is contained in this Operation Manual to which this declaration relates and is in conformity with the relevant standards of the undernoted European Union 2006 42 EC Machinery Directive In addition to the above Laws the Wrench meets the manufa...

Page 3: ... IMPACT WRENCH MAINTENANCE MANUAL CONTENTS DESCRIPTION PAGE NUMBER Uses Technical Information 1 Safety Precautions 2 Operating Controls Illustrations 3 Operating Controls Instructions for use 4 Start Stop Operation 5 Basic Workshop Safety Rules 6 Routine Service 7 Motor Repairs 8 Motor Parts Exploded Diagram Drawings and Parts Lists 9 13 Impact Unit Repairs 14 Impact Unit Gearbox Exploded Diagram ...

Page 4: ... sight glass with Wrench in the horizontal position Change Oil every twelve months 5 IGNITION DIGITAL Spark Plug Champion RCJ 4 or equivalent Gap should be 0 5mm 6 IMPACT MECHANISM Fill with 130 grammes 41 2 oz of Molybdenum Disulphate Grease Castrol MS3 Klubern N12MF Valvoline NLG 1 2 or equivalent Grade 2 quality 7 NOISE Operation levels based on ISO3744 Acoustic Pressure LpA 101 7 dBA Power LWA...

Page 5: ...meet EUR5 and EPA 3 Standards It will become HOT during and after use Please AVOID direct contact 5 Know where the controls are and how to use them and be able to STOP the Wrench quickly in an emergency 6 Do Not Operate in confined spaces because of the danger of Carbon Monoxide being present 7 Remove FUEL FILLER CAP CAREFULLY as pressure can build up in the tank This is very important in warm wea...

Page 6: ...De Compression Button 8 Oil Filler Plug with Sightglass 3 Recoil Starter Handle 9 Fuel Filler Cap 4 Throttle Trigger 10 Location of Serial Number Label 5 Trigger Lock 11 Air Filter Cover Clips 6 Gear Lever OPERATING CONTROLS ILLUSTRATIONS 2 10 8 7 6 3 11 9 1 4 5 3 ...

Page 7: ... The gears are stationary when the Motor is idling at tickover speed Select the gear required If it will not engage gently squeeze the throttle trigger so the gear parts move slightly 7 SOCKET SQUARE DRIVE Standard 1 Square Drive The Accessory is secured to the Square Drive by a Rubber Ring and a 5mm dia Bright Steel Pin or other suitable retaining device If the Pin breaks or bends examine both Ac...

Page 8: ...pulls 8 Repeat step 3 A few pulls are sufficient to start the engine If the engine dies please repeat steps 2 3 4 and 5 The De Compression Button 2 automatically goes off when the engine fires 9 When the engine is running pull the trigger to achieve the engine idling Note If the engine is warm it is only necessary to engage the Choke for a few seconds DO NOT use the De Compression Button again 4 O...

Page 9: ...tes unnecessary noise 2 Empty fuel from the tank in a safe area before starting work on any Engine 3 If the Wrench has not been used for some time empty and clean the fuel tank 4 Under no circumstances smoke in a Workshop area 5 Keep work areas clean and free from old oil fuel and dirty rags which could ignite 6 Do not leave fuel in open containers 7 Use safety cans for the storage of fuel and do ...

Page 10: ...ear Selector 2870 1000 and remove from Gear Box Empty out old oil Fill gearbox with 0 25 litres 1 2 pint of Gazpromneft Reductor CLP68 Mobil Gerar 626 Carter EP68 Merpoa 68 Valvoline 80 90W or an equivalent non synthetic 68 viscosity Gear Oil Re fit Selector and fit screws using a suitable fastener locking fluid 6 GREASING HAMMER AND ANVIL Remove three nuts 2310 2061 four Screws 2300 0851 and Nose...

Page 11: ...ns The Carburettor is designed to allow limited adjustment of Screws L and H by one half turn which is factory set and should not be changed by the user Idle Screw T is adjusted to provide a safety margin between idle running and clutch engagement If the Anvil turns during idling lower the idle speed by turning Screw T out until the Anvil stops 5 Continued If engine cuts out turn idle screw in and...

Page 12: ...t Wrench MASTER MOTOR PARTS LIST CARBURETTOR Ref No Qty Part No Description 1 2 4003 4010 Spring 2 1 4003 4020 Min Adjustment Screw 3 2 4003 4030 Cap 4 1 4003 4040 Repair Kit 5 1 4003 3220 Carburettor 6 1 4003 4050 Max Adjusting Screw 9 ...

Page 13: ...70 Bearing 10 1 4003 5100 Motor Shaft 11 1 4003 0580 Bearing 12 1 4003 0600 Clutch Washer 13 1 4003 5130 Bearing 14 1 4003 1110 Clutch Complete Ref No Qty Part No Description 15 1 4003 3190 Gasket Kit 17 1 4003 0050 Spring 22 2 4003 5170 Piston Ring 23 2 4003 0140 Spring Clip 72 01198 24 1 4003 0800 Gudgeon Pin 25 1 4003 5200 Piston Kit 26 1 4003 5210 Complete Cylinder 27 2 4003 2060 Screw 28 1 40...

Page 14: ...4 4 4003 6040 Antivibration Bush 5 4 4003 6050 Screw 6 2 4003 0870 Rubber Mount 7 1 4003 6070 Cam 8 1 4003 6080 Throttle Lever 9 1 4003 6090 Spring 10 1 4003 6100 Lever 11 1 4003 6110 Cover 12 3 4003 6120 Screw 13 1 4003 6130 Fuel Tank Complete 14 1 4003 6140 Tube 15 1 1708 0070 Fastening Clip 16 1 4003 1075 Fuel Filter 19 1 4003 0460 Vent Tube 21 1 4003 6150 Cover 22 3 4003 2050 Screw 11 ...

Page 15: ...3 0440 Flywheel Ratchet Assembly 9 1 4003 2090 Flywheel Kit 10 1 4003 2100 Flange 11 1 4003 0690 Screw 12 1 4003 0700 Washer 13 1 4003 2130 Starter Pulley 14 4 4003 0096 Screw 15 1 4003 2150 Starter Spring 16 1 4003 2160 Washer 17 1 4003 0340 Starter Rope 18 1 4003 2180 Starter Handle 19 1 4003 2190 Starter Assembly 20 4 4003 2070 Screw 21 1 4003 2210 Plug 22 1 4003 2220 Cover MASTER MOTOR PARTS L...

Page 16: ...ort 11 2 4003 3120 Bush 13 1 4003 3130 Ground Cable 14 1 4003 3140 Cable 15 1 4003 3150 Ring 16 1 181 00118 Fuel Filter Cap Ref No Qty Part No Description 17 1 4003 3170 Crankcase 18 1 4003 3180 Seal 20 1 4003 3190 Gasket Kit 22 1 4003 3200 Screw 23 1 4003 3210 Cable Entry 24 1 4003 3220 Carburettor 26 7 4003 3230 Screw 36 1 4003 3240 Stop Lever 37 1 4003 3250 Screw 38 1 4003 3260 Screw 39 1 4003 ...

Page 17: ...Check for wear and damage Remove Satellite Gear 035551 by tapping inwards and then remove it and the Gear Cluster Check both for wear or damage Assemble in reverse order When rebuilding the Gearbox always fit new Seals and Gaskets Use Gasket Kit 2890 1065 Please Note The Satellite Gear has a chamfered edge which MUST be re fitted in the same way as before 5 DISMANTLING COMPLETE HAMMER 035309 Place...

Page 18: ...61 Locknut 4 9 2 2400 1050 Lock Washer 5 1 2650 1050 Fuel Tank Protection Plate 6 1 2810 1072 Engine Complete IMPACT UNIT GEARBOX AND CARRYING HANDLE Ref No Qty Part No Description 8 3 4003 2050 Screw 9 1 2700 0200 Retention 10 1 2580 0050 Fixing Screw 11 1 2310 2061 Locknut 12 1 2580 0814 Screw 13 4 2300 0520 Screw 14 2 2300 0635 Screw 15 4 2400 7060 Lock Washer 16 4 2400 2080 Flat Washer 17 1 26...

Page 19: ...New Master 35 Petrol Gasoline Impact Wrench IMPACT UNIT AND GEARBOX DETAILED 16 ...

Page 20: ...sh 32 1 035549 Satellite Pin 33 1 2580 0090 Gear Lever 34 1 035112 Gear Selector 35 1 135114 O Ring 36 1 2360 0397 Ball Ref No Qty Part No Description 37 1 035523 Spring 38 1 035111 Gear Lever Flange 39 1 035107 Reverse Lever 40 1 035554 Pin 41 1 135110 Ring 42 1 2300 0620 Screw 44 1 035561 Ring Flange 45 1 2343 0520 Ring Seal 46 1 2332 0351 Bearing 47 1 2332 0300 Bearing 50 1 035568 Hammer Casing...

Page 21: ... your Service Dealer Engine does not reach full speed and or emits excessive smoke 1 Check oil fuel mixture 2 Air Filter dirty 3 Carburettor requires adjustment 1 Use fresh fuel and the correct 2 cycle oil mix 2 Clean per instruction in Maintenance Air Filter Section 3 Contact Service Dealer Engine starts runs and accelerates but will not idle Carburettor requires adjustment Turn Idle speed screw ...

Page 22: ...028090 EXHAUST FLANGE 40000307 PISTON LOCK STOP 40028059 COIL FLYWEHEEL GAUGE 40000308 FLYWHEEL PULLER 40000306 SPANNER FOR RUBBER MOUNTS 40000303 SCREWDRIVER FOR CARB ADJUSTMENT 40000325 SPECIAL TOOL WORKSHOP TOOLKIT 4000 0290 Contains all Tools and Equipment shown above except Electronic Rev Counter plus Flange Cover 4000 0315 and tools for old Master Impact Wrench 19 ...

Page 23: ...16 Sockets 1 Over one hundred Imperial and Metric sizes Square Bi Square Rectangular Hexagon and Butterfly Standard and Deep Attachments European Hex American Hex Graff Round METAL CARRYING BOX Will hold a Wrench and Accessories AUGERING 1 Buy your GENUINE SPARE PARTS AND ACCESSORIES FROM OUR AUTHORISED DISTRIBUTOR IMPACT Sockets 7 8 For use on all Track Screwing Machines Quick Release and Standar...

Page 24: ...aster 35 Petrol Gasoline Impact Wrench Couper Street Glasgow G4 0DL United Kingdom Tel 44 0 141 552 5591 Fax 44 0 141 552 5064 E mail enquiries airtecinternational co uk Website www airtecinternational co uk ...

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