Turfmech Buffalo Series Operator's & Parts Manual
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Turfmech Buffalo Series Operator's & Parts Manual

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A member of the Turfmech group
Buffalo 20, 24 & 27"
OPERATOR & PARTS MANUAL
For Serial number:
BU20/4-XX-XXX onwards
BU24/4-XX-XXX onwards
BU27/4-XX-XXX onwards
(AM81589 Issue B March 2013)
Turfmech Machinery Limited
Hangar 5, New Road, Hixon, Stafford, ST18 0PJ, United Kingdom
English version
Tel: +44 (0) 1889 271503
Fax: +44 (0) 1889 271321
Sales@turfmech.co.uk
www.turfmech.co.uk
For Allett spare parts
Tel: +44 (0) 1889 272095
Fax: +44 (0) 1889 271321
Sales@allett.co.uk
www.allett.co.uk

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  • Page 1 A member of the Turfmech group Buffalo 20, 24 & 27” OPERATOR & PARTS MANUAL For Serial number: BU20/4-XX-XXX onwards BU24/4-XX-XXX onwards BU27/4-XX-XXX onwards (AM81589 Issue B March 2013) English version Turfmech Machinery Limited Hangar 5, New Road, Hixon, Stafford, ST18 0PJ, United Kingdom...
  • Page 2 READ THIS MANUAL BEFORE USING AN ALLETT BUFFALO CYLINDER MOWER. YOUR SAFETY IS INVOLVED IT IS ESSENTIAL THAT OPERATORS STUDY THIS DOCUMENT FOR THEIR OWN SAFETY.

  • Page 3: Table Of Contents

    Contents 1.0 Introduction 1.1 Model type and serial number 2.0 Pictograms and Decals 3.0 Safety notes 4.0 Assembly 5.0 Operating controls 6.0 Using your mower 6.1 Starting 6.2 Stopping 6.3 Adjusting the bottom blade - setting “on cut” 6.4 Height of cut adjustment 6.5 Engaging drive to the cylinder 6.6 Engaging drive to the land roll 6.7 Park brake...

  • Page 4: Introduction

    The safety precautions outlined in this manual and all other generally recognised regulations on safety must be observed at all times. Any modifications carried out to a Buffalo mower will relieve Turfmech Machinery Limited of liability for any resulting damage or injury.

  • Page 5: Pictograms And Decals

    2.0 Pictograms and Decals Refer to manual before carrying out maintenance, Engine On/Off switch, Read manual before starting Guaranteed Sound power level emitted by the mower Bottom blade to cylinder adjustment Flying debris, keep bystanders away. Warning, sharp blades, do not touch rotating blades. The blades continue to rotate after the mower is switched off 3.0 Safety notes Read these instructions carefully, be familiar with the controls and the proper use of...
  • Page 6 - Replace faulty silencers - Do not operate the engine in a confined space where dangerous carbon monoxide fumes can collect. - Before using, always visually inspect to see that the cutting cylinder is not worn or damaged. Mow only in daylight or in good artificial light. Avoid operating the lawnmower in wet grass, where feasible.

  • Page 7: Assembly

    Ensure replacement parts fitted are manufacturer’s original or approved by the manufacturer. 4.0 Assembly 1) Fold handles back to a comfortable operator height and tighten 4 bolts 2) Fold down grass box cradle and fit grass box 3) Release the handbrake...

  • Page 8: Operating Controls

    5.0 Operating controls 1) Handle bar ON/OFF switch 12) Starter grip 2) Throttle 13) Fuel valve lever 3) Cutting cylinder engagement 14) Choke lever 4) Land roll engagement 15) Oil dipstick 5) Park brake 16) Spark plug 6) Top handle bar 17) Air filter 7) Cable adjuster 18) Fuel filler cap...

  • Page 9: Using Your Mower

    6.0 Using your mower 6.1 Starting 1) Move the fuel valve lever to the ON position 2) For a cold T start move the choke lever to the CLOSED position |\| To restart a warm R engine leave the choke lever in the OPEN position 3) Set the throttle to 1/3 position 1/3 position...

  • Page 10: Stopping

    6) Pull the starter grip lightly until you feel resistance, then pull briskly. Return the starter grip gently 7) If the choke lever was moved to the CLOSED position |\| to start the engine, gradually move it to the OPEN position |||as the engine warms up 6.2 Stopping 1) Move the throttle lever to MIN position...
  • Page 11 To set the cutting cylinder on cut: 1) Tilt the mower back and wedge securely 2) Turn the adjuster screws anti clockwise to move the bottom blade closer to the cylinder Turn the adjuster screws clockwise to move the bottom blade further from the cylinder 3) When making adjustments to the bottom blade frequently check progress by cutting a piece of paper...

  • Page 12: Height Of Cut Adjustment

    6.4 Height of cut adjustment The height of cut is set by altering the position of the front roller. WARNING - blades are sharp, always wear gloves 1) Set “on cut” first, refer to section 6.3 2) Adjust and lock the bolt on the height setting bar to your desired height of cut 3) Slacken the four front roller fasteners 4) Tilt the mower back and wedge securely 5) With the height setting bar near one end of the bottom blade, locate the bolt head...

  • Page 13: Maintenance

    7.0 Maintenance WARNING – Stop the engine and remove the spark plug cap To ensure long and reliable service, carry out the following maintenance regularly: Regularly check for obvious defects such as a loose, dislodged or damaged blades, loose fixings and worn or damaged components. Check that covers and guards are undamaged and correctly fitted.

  • Page 14: General Engine Maintenance

    SAE 10W-30 oil is recommended for general use. It is important to use the recommended oil to avoid damage to your engine. Engine oil capacity is 0.6L 7.3 General engine maintenance Check and clean the air filter (17), replace if necessary. See engine manual for details.

  • Page 15: Grease Points

    7.5 Grease points 8 Grease points in total (Remove covers to access grease points) A) 2 cylinder bearings (1 pump every 1-2 weeks) B) 2 rear roller bearings (1 pump every month) C) 3 drive shaft bearings (1 pump every 1-2 weeks) D) 1 idler pulley bearing (1 pump every 1-2 weeks) Recommended best practice is to grease little and often 7.6 Bottom blade grinding angles...

  • Page 16: Maintenance Schedule

    7.8 Maintenance schedule Activity Task Daily Weekly Monthly Yearly Check ● Engine oil level ● Fuel level ● Air cleaner condition ● Guards in place ● Cutting cylinder ● Fasteners ● Chain and belt tension ● Spark plug Clean ● Debris/grass from mower ●...

  • Page 17: Making Adjustments To Your Mower

    8.0 Making adjustments to your mower 8.1 Floating handle bars The upper and lower handle bars are isolated with rubber vibration mounts. The lower handle bar is also suspended via springs. The sprung lower handle bar is designed to “float” off the rubber stops when in use. The spring tension can be adjusted by rotating the spring anchor.

  • Page 18: Vibration Reduction

    9.0 Vibration reduction Best practices for reducing vibration emission: The mower is designed to operate at low engine speeds. Adequate performance can be achieved at little over idle speed. Inspect the rubber vibration mounts for signs of wear and deterioration, replace if necessary.

  • Page 19: Ec Declaration Of Conformity

    Vibration test code BS EN 836 Annex G, xx m/s/s xx uncertainty Notified body: AV Technology, Handforth, Cheshire Technical construction file is kept by: Turfmech Machinery Ltd, Hangar 5, New Road, Hixon, Staffordshire, ST18 0PJ, UK I hereby declare that the equipment named above has been tested and found to comply with the relevant sections of the above referenced specifications.

  • Page 20: Fault Finding When Mowing

    12.0 Fault finding when mowing Problem Possible cause Remedy Occasional blades of uncut Ground speed too fast. Reduce forward travel speed. grass. Height of cut too high Reduce height of cut. Poorly adjusted bottom blade. Re-adjust bottom blade. Blunt cutting cylinder/bottom blade. Grind/recondition as necessary.

  • Page 21: Specification

    13.0 Specification Model name Buffalo 20 Lawn Buffalo 24 Lawn Buffalo 27 Lawn Mower Mower Mower Cutting width 510mm (20”) 610mm (24”) 686mm (27”) Engine Honda GX120 Honda GX160 Honda GX160 Engine fuel/oil capacity 2.0L Unleaded fuel, 3.1L Unleaded fuel, 3.1L Unleaded fuel, 0.6L oil SAE 0.6L oil SAE...

  • Page 22: Guarantee

    14.0 Guarantee Turfmech/Allett guarantees this product against manufacturing defects. We will repair (or replace at our option) if a manufacturing defect occurs within the guarantee period as long as it has not been subjected to rental/hire use. The engine fitted to this mower is covered by the engine manufacturer. See engine manuals for details.

  • Page 23: Parts Section

    15.0 Parts section Buffalo 20/4, 24/4 & 27/4 PARTS SECTION For: BU20/4-XX-XXX onwards BU24/4-XX-XXX onwards BU27/4-XX-XXX onwards...
  • Page 24 MODEL BU20, BU24 & BU27:- Mainframe Assembly BOM (FIG 1)
  • Page 25 MODEL BU20, BU24 & BU27:- Main Frame Assembly BOM (FIG 1) ITEM DESCRIPTION PART 20" PART 24" PART 27" USED SPRING WASHER M10 SWM10 CHASSIS AB084 AB085 AB086 CHAINCASE AB003 WASHER M8 FORM A WM8A NYLOC NUT M8 NNM8 BUFFALO CYLINDER AB014-8 AB015/8 AB016/8...
  • Page 26 MODEL BU20, BU24 & BU27:- Rear Roller Assembly (FIG 2)
  • Page 27 MODEL BU20, BU24 & BU27:- Rear Roller Assembly BOM (FIG 2) ITEM NO. DESCRIPTION PART 20" PART 24" PART 27" USED WASHER M8 FORM A WM8A 3/8 SPRING WASHER 3/8 x 3/4 UNF S11011 REAR ROLLER SHAFT BG1025 BG1024 BG1023 DIFFERENTIAL CARRIER BSG024 KEY 1/4"...
  • Page 28 MODEL BU20, BU24 & BU27:- Front Roller Assembly (FIG 3)
  • Page 29 MODEL BU20, BU24 & BU27:- Front Roller Assembly BOM (FIG 3) ITEM NO. DESCRIPTION PART 20" PART 24" PART 27" USED WASHER M8 FORM A WM8A NUT M8 NYLOC NNM8 SET SCREW M8 x 25 SM825 COACH BOLT M8 x 25 ZY BCM825 BRACING BAR BG1026...
  • Page 30 MODEL BU20, BU24 & BU27:- Countershaft Assembly (FIG 4)
  • Page 31 MODEL BU20, BU24 & BU27:- Countershaft Assembly BOM (FIG 4) ITEM NO. DESCRIPTION PART 20" PART 24" PART 27" USED NUT M6 NYLOC NNM6 WASHER M6 SPRING WASHER M6 SWM6 M6X20 SET SCREW SM620 3/8 x 1 UNF CSK SLOTTED S11010 3/8 SPRING WASHER 3/8 x 1/2 UNF SCREW...
  • Page 32 MODEL BU20, BU24 & BU27:- Cylinder Drive Assembly (FIG 5)
  • Page 33 MODEL BU20, BU24 & BU27:- Cylinder Drive Assembly BOM (FIG 5) ITEM NO. DESCRIPTION PART 20" PART 24" PART 27" USED M10 FLAT WASHER WM10 NUT M8 NYLOC NNM8 WASHER M6 3/8 SPRING WASHER 3/8 x 3/4 UNF S11011 M10 x 20 SET SCREW SM1025 3/8 x 1 UNF SET SCREW M10 NYLOC NUT...
  • Page 34 MODEL BU20, BU24 & BU27:- Rear Roller Drive Assembly (FIG 6)
  • Page 35 MODEL BU20, BU24 & BU27:- Rear Roller Drive Assembly BOM (FIG 6) ITEM NO. DESCRIPTION PART 20" PART 24" PART 27" USED NUT M8 NYLOC NNM8 BEARING 20mm 6004 2RS AM81007 SMALL COMPOUND BSG025 9mm BEARING AM90513 COMPOUND CENTRE BSG008 COMPOUND STUD 3/8 x 33 BSG1069 TOP SPROCKET...
  • Page 36 MODEL BU20, BU24 & BU27:- Top Handle Assembly (FIG 7)
  • Page 37 MODEL BU20, BU24 & BU27:- Top Handle Assembly BOM (FIG 7) ITEM NO. DESCRIPTION PART 20" PART 24" PART 27" USED WASHER M6 ON-OFF SWITCH HARNESS ASSEM BSG035 CABLE CUTTER CLUTCH BSG1077 CABLE ROLLER DRIVE BSG1078 CABLE CUTTER CLUTCH BSG1077 HEX SET SCREW SM620 M6 X 12 SET SCREW...
  • Page 38 MODEL BU20, BU24 & BU27:- Brake Assembly (FIG 8) MODEL BU20, BU24 & BU27:- Brake Assembly BOM (FIG 8) ITEM NO. DESCRIPTION PART 20" PART 24" PART 27" USED BRAKE SWIVEL FAB BSG043 BSG044 BSG034 CABLE CUTTER CLUTCH BSG1077 BRAKE CABLE RETAINER BS1002 SPRING AM90519...
  • Page 39 MODEL BU20, BU24 & BU27:- Grassbox Assembly (FIG 9) MODEL BU20, BU24 & BU27:- Grassbox Assembly BOM (FIG 9) ITEM NO. DESCRIPTION PART 20" PART 24" PART 27" USED SPRING WASHER M6 SWM6 SET SCREW M10 x 25 SM1025 M10 NYLOC NUT NNM10 SET SCREW M6 x 30 SM630...
  • Page 40 Notes...

This manual is also suitable for:

Buffalo 20Buffalo 24Buffalo 27

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