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PROTEA BG760 Operating Instructions & Spare Parts Manual
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PROTEA BG760 Operating Instructions & Spare Parts Manual

30” petrol cylinder mower
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B.G. 760 (30") PETROL Cylinder Mower
Operating Instructions
&
Spare Parts Manual

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Summary of Contents for PROTEA BG760

  • Page 1 B.G. 760 (30”) PETROL Cylinder Mower Operating Instructions & Spare Parts Manual...

  • Page 2: Contact Details

    011 828 9935 082 458 7257 Mobile: Postal Address Physical Address P.O.BOX 1673 32 Shaft Road BEDFORDVIEW Knights 2008 GAUTENG Germiston SOUTH AFRICA Gauteng South Africa Email: sales@proturf.co.za Email: sean@proturf.co.za For further information on any Protea products, please visit our website www.proteamachines.com...
  • Page 3 POWER LAWNMOWER SAFETY PRECAUTIONS Know your controls. Read the owner's manual 13 Stop the engine whenever you leave the carefully. Learn how to stop engine quickly in an mower, even for a moment. emergency. 14 Stop the engine before pushing mower Make sure the lawn is clear of sticks, stones, across gravel drives, walks or roads.
  • Page 4 TO ASSEMBLE THE BELT OPERATING CLUTCH ROD NOTE: The positions of the screwed adjusters on the clutch rods are only to make the levers operate correctly and once they are assembled, they should NOT be altered. These adjustments are NOT used to alter the belt or traction clutch tensions.

  • Page 5: Height Adjustment

    CUTTING ADJUSTMENTS FRONT ROLLER: The height of the cut of the mower is controlled by the adjustment of the front roller. The mower cuts lower if the front roller is raised, or alternatively the mower cuts higher if the front roller is lowered.
  • Page 6 TEASING RAKE ADJUSTMENT FIG.13 In order to adjust the teasing rake, loosen the locknut (2)Fig.13 and use the Teasing Rake Stud Nuts (1)Fig.13 in order to achieve the desired height. Before once again tightening the locknuts, ensure that the teasing brush is as level as possible.
  • Page 7 underside of the front and rear rollers, as illustrated, Fig.8, and by adjusting the front roller, the desired height of cut will be obtained when the underside of the screw head lightly touches the top cutting edge of the bottom blade when checked at locations across the width of the blade. Take care not to force the head of the adjusting screw onto the bottom blade, as this could distort the blade and affect the setting.
  • Page 8 CUTTER / SOLE PLATE ASSY The cutter and sole plate is one assembly and can only be removed as one unit. 1. Remove the deflector by unscrewing the adjustment set screws (4)Fig.9. pull the deflector upwards and forward. Spring clips are holding the bottom end to the sole plate. 2.
  • Page 9 CHAIN TRANSMISSION The three chains, countershaft to drum clutch sprocket (11) Fig.11, countershaft to cutter (12) Fig.12, and drum clutch to drum (13) Fig.12 are all provided with chain adjusters (14). The chains should never be adjusted tightly. It is advisable to leave slightly more slackness on the cutter chain to allow for cutter adjustment without having to adjust the chain.
  • Page 10 TO CHECK MOWER FOR ALIGNMENT Lay the mower back on the handle. Chalk the thin front end of the bottom blade about 6” of it’s length at both ends. With the front roller remaining in approximately it’s normal height setting, “sight” the bottom of the front roller relative to the chalked cutting edge of the blade.

  • Page 11: Adjusting Belt Tension

    ADJUSTING BELT TENSION TO ADJUST TENSION OF SINGLE PULLEY BELT a) Slacken engine mounting bolts. (18) Fig.16 b) Tension belt by using engine adjusting screw. (19) Fig.16. c) Check engine for squareness on table for pulley alignment before tightening engine bolts. d) DO NOT OVERTENSION –...
  • Page 12 REPLACEMENT OF BELTS TO REMOVE BELTS The replacement of belts is quite easy and can be performed in less than 15 minutes. All belts are identical. Cutter drive Twin belts should be matched for length and MUST always be replaced as a PAIR, and it is good maintenance to replace the traction drive belt at the same time.
  • Page 13 TRACTION BELT DRIVE 1. Remove the three bolts (26) to replace the jockey pulley pivot plate (27). See Fig.24. Note: Washers must return to the same position on re-assembly. 2. With draw belt through opening between jockey and engine pulleys. See Fig.25. 3.
  • Page 14 TO REPLACE BELTS TRACTION DRIVE BELT NOTE : The gap between the jockey and engine pulleys can be manipulated by moving the pivot plate (27) while locating the belt. 1. Insert belt through gap between jockey and engine pulleys. See Fig.27. 2.
  • Page 15 TO ADJUST JOCKEY PULLEY ARM Should the pivot arm require adjustment to eliminate sideways movement, tighten pivot nut with13mm A/F socket and then unscrew it about ¼ of a turn to make sure the pivot arm is just free to pivot.
  • Page 16 GREASE AND OIL LUBRICATION THE FOLLOWING POINTS REQUIRE GREASE LUBRICATION 1. Cutter bearings. ‘b’ fig.9. 2. Counter shaft bearing housing at side frame end only. ‘c’ fig.11. 3. Drum clutch bearing housing, both ends. ‘d’ fig.15. THE FOLLOWING POINTS REQUIRE OIL LUBRICATION:- 1.

  • Page 17: Spare Parts

    SPARE PARTS...
  • Page 18 FIGURE 1...
  • Page 19 REFER FIG. 1 ILLUS DESCRIPTION PART NO HD760 (30") INNER FRAME ASSY (760 mm) 655605 HD760 (30") DEFLECTOR ASSY (760 mm) 651330 DEFLECTOR ADJUSTER BAR 305656 HEX. SET SCREW M8 x 20 M8 FLAT WASHER & SPRING WASHER CHAIN COVER CASE H.D. 656608 SCREW M8 x 20 SET SCREW M10 x 25...
  • Page 20 FIGURE 2...
  • Page 21 REFER FIG. 2 ILLUS DESCRIPTION PART NO 760 30" HANDLE ASSY 656632 M10 x 25 BRH BOLT SHAKE PROOF WASHER M10 NUT DRUM CLUTCH LEVER 656675 BRIGHT WASHER 12mm DIA CUTTER CLUTCH LEVER 656683 M2 x 20 SPLIT PIN & M8 FLAT WASHER CUTTER CLUTCH CONTROL ROD 656501 DRUM CLUTCH CONTROL ROD...
  • Page 22 FIG 3 BG (PETROL)
  • Page 23 REFER FIG. 3 ILLUS DESCRIPTION PART NO 30" X 16 BLADED CUTTING CYLINDER 659915 30" FRONT ROLLER 659700 FRONT ROLLER BRACKET L.H. AND R.H 301050 FRONT ROLLER ADJUSTER BRACKET L.H AND R.H 301031 FRONT ROLLER BEARING SER 206 1122328 FRONT ROLLER STUB AXLE R.H AND L.H 301518 STUB AXLE BOLT AND SPRING WASHER M10x40 TEASING BRUSH BRACKET...
  • Page 24 FIG 4 B.G PETROL 16 17...
  • Page 25 REFER FIG. 4 ILLUS DESCRIPTION PART NO OUTER DRUM 659655 INNER DRUM 659650 RATCHET BOX 301188 DRUMSHAFT SLEEVE 301808 DRUM BUSH 1771189 DRUM SHAFT LOCK NUT 659564 M10 GRUB SCREW M10 NUT RH & LH DRUM THRUST WASHER 659666 PAWLHOLDER (SG IRON) 301197 PAWLHOLDER SCREW 3162306...
  • Page 26 FIGURE 5 57 54 22 53 29 28 18 19...
  • Page 27 REFER FIG. 5 ILLUS DESCRIPTION PART NO DRIVE TUBE ASSY 760 & 914 656106 FLANGED BUSH 3115997 DRUM DRIVE PULLEY 656149 M6x20 SPRING WASHERS AND NUTS DRIVE SHAFT 760 & 914 656157 BEARING 6203Z 1122327 BEARING HOUSING 656173 GREASE NIPPLE M6 M8 x 35 SET SCREW SPRING WASHER &...
  • Page 28 FIGURE 6...
  • Page 29 REFER FIG. 6 ILLUS DESCRIPTION PART NO CLUTCH SHAFT ASSY. 655971 CLUTCH SPRING 656018 PRESSURE PLATE 656026 CLUTCH PIN 656034 CLUTCH SPROCKET ASSY. 657555 BUSH 657598 LUBRICATING STRIP 657600 CLUTCH BODY 657539 CLUTCH DRIVE PIN 1814823 CLUTCH THRUST WASHER 657512 CLUTCH OPERATING RAMP 655947 BEARING HOUSING &...
  • Page 30 FIGURE 7...
  • Page 31 REFER FIG. 7 ILLUS DESCRIPTION PART NO 760 GRASS BOX ASSY. 652033 PIVOT BOLT 659525 M10 WAVY WASHER M10 NYLOC NUT PURCHASE BLOCK 201433 PURCHASE BLOCK SPACER 659430 GRASSBOX LH & RH SUPPORT ARM 659530 M10 FLAT WASHER M10 NYLOC NUT RUBBER SLEEVE 659225.1 RUBBER SLEEVE SPACER...
  • Page 32 ACCESSORIES...
  • Page 33 ACCESSORIES ILLUS DESCRIPTION PART NO H.D.760 SWEEPER REEL ASSY 657100 H.D.760 GROOMER REEL ASSY 658300 H.D.760 PIN TYPE REEL ASSY 654913 BEARING LOCK NUT (LH) 161277 BEARING 6304Z 1123643 H.D.760 GROOMER SHAFT 659865 GROOMER BLADE 5306081 GROOMER SPACER 5306082 GROOMER SHAFT LOCK NUT 659880 M10 x 20 GRUB SCREW WITH LOCK NUT Page 8...