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Bunton BZT 2000 EFI Series Setup, Parts & Maintenance Manual

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SETUP, PARTS & MAINTENANCE
MANUAL BZT 2000 EFI SERIES
Models:
642230
BZT 2260EFI 26HP KLR W/61 SIDE DISCHARGE
642231
BZT 2260EFI 26HP KLR W/72 SIDE DISCHARGE
WARNING: If incorrectly used this machine can cause severe injury. Those who use
and maintain this machine should be trained in its proper use, warned of its dangers
and should read the entire manual before attempting to set up, operate, adjust or
service the machine.
Operation & Safety Manual: 2722184
2722185 REV C

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  • Page 1 SETUP, PARTS & MAINTENANCE MANUAL BZT 2000 EFI SERIES Models: 642230 BZT 2260EFI 26HP KLR W/61 SIDE DISCHARGE 642231 BZT 2260EFI 26HP KLR W/72 SIDE DISCHARGE WARNING: If incorrectly used this machine can cause severe injury. Those who use and maintain this machine should be trained in its proper use, warned of its dangers and should read the entire manual before attempting to set up, operate, adjust or service the machine.
  • Page 2 CALIFORNIA WARNING Proposition 65 Warning The engine exhaust from this product Diesel engine exhaust and some of contains chemicals known to the State its constituents are known to the State of California to cause cancer, birth of California to cause cancer, birth defects or other reproductive harm.

  • Page 3: Table Of Contents

    Your safe use of this Bunton product is one of our prime design objectives. Many safety features are built in, but we also rely on your good sense and care to achieve accident-free operation. For best protection, study the manuals thoroughly and watch the operation training video.

  • Page 4: Safety

    SAFETY BZT 2000 EFI Series This symbol means: NOTICE !!! ATTENTION! BECOME ALERT! Unauthorized modifications may present extreme safety hazards to operators and bystanders and could also result in product damage. Your safety and the safety of others is involved. Textron Golf, Turf &...

  • Page 5: Assembly And Setup

    ASSEMBLY AND SETUP BZT 2000 EFI Series TOOLS REQUIRED FOR ASSEMBLY – Wrecking bar – Claw hammer – Ratchets: 3/8" – Sockets: 3/8", 1/2", 17 mm, 19 mm – Wrenches: two 15/16" (or adjustable), 13 mm, 17 mm, 19 mm –...
  • Page 6 ASSEMBLY AND SETUP BZT 2000 EFI Series 2. Set tire pressures to 14 lbs/in (1.0 kg/cm ). Tires are overinflated for shipping. 3. LEVEL CUTTERDECK – Side Discharge: The front of a side discharge deck should be slightly lower than the rear. –...
  • Page 7 ASSEMBLY AND SETUP BZT 2000 EFI Series 4. TRACTION LEVERS a) Remove bolt A. b) Rotate traction lever B into position and secure with bolt A. Repeat for the other lever. c) Tighten all fasteners. d) Sit on the machine. If the levers are too long, bracket C may be removed to make them shorter.
  • Page 8 MAINTENANCE CHART BZT 2000 EFI Series t l i t l i Consult the manufacturer's manual for your engine for further information and instructions.

  • Page 9: Maintenance Record

    MAINTENANCE RECORD BZT 2000 EFI Series NOTES _______________________________________________________________ ____________________________________________________ ________________________________________________________________________ _______________________________________________________________ ____________________________________________________________ ____________________________________________________ ________________________________________________________________________ _______________________________________________________________ ____________________________________________________________ _______________________________________________________________ ____________________________________________________________ ____________________________________________________________ & & r i f , l i t l i...

  • Page 10: Maintenance

    (A 1/2 second delay is built into the system to prevent engine cutout when traversing rough terrain.) Repair machine before using if the Operator Presence Interlock System does not operate correctly in start or run. Contact your authorized Bunton dealer. Hardware Tighten any nuts and bolts found loose.
  • Page 11 MAINTENANCE BZT 2000 EFI Series LUBRICATION Every 50 hours of operation, lubricate the following points (1-5) with grease: 1. Push arms (2 points located at rear of cutterdeck under each fuel tank) 2. Brake lever pivot (1 point) 3. Deck idler pivot bearings (2 points) 4.
  • Page 12 MAINTENANCE BZT 2000 EFI Series HYDRAULIC SYSTEM After the first 5 hours of operation, fluid level in the hydraulic system should be checked every 100 hours or when a leak has occurred. If the fluid is low, check all components for leaks. To check, remove reservoir cap M.
  • Page 13 MAINTENANCE BZT 2000 EFI Series ENGINE OIL Do not perform engine maintenance without the engine off, spark plug wires disconnected and PTO disengaged. AFTER FIRST FIVE (5) HOURS While the engine is warm: 1. Remove drain cap D and drain the crankcase. Dispose of used oil in accordance with local requirements.
  • Page 14 MAINTENANCE BZT 2000 EFI Series FUEL SYSTEM Before attempting to service any part of the fuel system, the pressure must be relieved. Refer to section 5B of the engine manual. A low pressure filter C is located on the kickplate as shown.
  • Page 15 MAINTENANCE BZT 2000 EFI Series AIR CLEANER Clean and replace the air cleaner element as specified in the service chart. Uneven running, lack of power or black exhaust fumes may indicate a dirty air cleaner. To replace air cleaner elements: 1.
  • Page 16 Replace bent or cracked blades. – Replace blades when the lift portion has worn thin. – Maintain cut angle at 30 – Do not overheat blades when sharpening. – Always use Bunton blades. Use of another manufacturer’s blades may be dangerous.

  • Page 17: Adjustments

    ADJUSTMENTS BZT 2000 EFI Series HEIGHT OF CUT The height of cut is set by moving height of cut pin N to the hole designated for the height of cut desired. To change the height of cut: 1. Raise the deck to the highest position. 2.
  • Page 18 ADJUSTMENTS BZT 2000 EFI Series PUSH ARMS The push arm rod ends must be adjusted evenly to: – locate the deck perpendicular to the front-to-rear axis of the machine; and – so the notch at the front of the engine deck clears the push arm bracket on the rear of the cutterdeck when the cutterdeck is raised to the transport position.
  • Page 19 ADJUSTMENTS BZT 2000 EFI Series DECK LEVELING 61" – Side Discharge: The front of a side discharge deck should be slightly lower than the rear. – Mulching: The front of a mulching deck should be slightly higher than the rear. To level deck: a) Park the machine on a smooth, level surface.
  • Page 20 ADJUSTMENTS BZT 2000 EFI Series PARKING BRAKE Start with parking brake N in the OFF position. 1. Adjust the parking brake rod to provide a distance of 14-3/16” between pin K and pin L 2. Disconnect one end of rods M (at brakes on both sides of the machine).
  • Page 21 ADJUSTMENTS BZT 2000 EFI Series HYDROSTAT ADJUSTMENTS A turnbuckle-style hydrostat neutral adjustment is provided. Neutral: 1. Support the machine with the rear wheels off the ground. Use jackstands or equivalent support. Do not rely only on mechanical or hydraulic jacks. 2.

  • Page 22: Belt Replacement

    BELT REPLACEMENT BZT 2000 EFI Series Note: Always use Bunton replacement belts, not general purpose belts. Bunton belts are specially designed for use on commercial mowers and will normally last longer. ENGINE-CUTTERDECK (PTO) BELT 1. Set the cutterdeck in the lowest height-of-cut position.
  • Page 23 BELT REPLACEMENT BZT 2000 EFI Series 61" CUTTERDECK BELT 1. Set the cutterdeck in the lowest height-of-cut position. 2. Remove the engine-cutterdeck belt from the deck idlers and pulley (see engine-cutterdeck belt replacement). Push it aside but don't remove it from the machine.

  • Page 24: Specifications

    SPECIFICATIONS BZT 2000 EFI Series POWER UNITS ENGINE: CONTROLS: Construction: Aluminum block with cast-in cast iron Throttle; choke; power takeoff (PTO) clutch switch; sleeves. Aluminum head. traction levers; parking brake lever; lift lever. Configuration: 4-stroke, vertical shaft, V-twin FUEL SYSTEM: cylinder, overhead valve, air-cooled, or electronic fuel One tank on each side of operator, each with a injection.
  • Page 25 SPECIFICATIONS BZT 2000 EFI Series " 4 . n i - t f / . l h / l . l a...
  • Page 26 SPECIFICATIONS BZT 2000 EFI Series " 1 " 5 " 2 " 5 " 0 " 0 t f i l t f i l t f i l o i t t f i l o i t " 0 "...
  • Page 27 PARTS SECTION BZT 2000 EFI Series PARTS SECTION...
  • Page 28 UPPER ENGINE DECK ASSY BZT 2000 EFI Series FIGURE 1...

  • Page 29: Upper Engine Deck Assy

    UPPER ENGINE DECK ASSY BZT 2000 EFI Series FIGURE 1 2722185-01 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 4114447 ENGINE-KOHLER CV26 1-42 64205-007 BLT-M10-1.5x20 4114747 S-FILTER, SECONDARY AIR 1 1-43 64163-55 WASHER .328X.75X14 GA 4114746 S-FILTER, PRIMARY AIR 1-44 2188146 STRIP, WEAR 842502...
  • Page 30 LOWER ENGINE DECK ASSY/CLUTCH BZT 2000 EFI Series FIGURE 2...

  • Page 31: Lower Engine Deck Assy/Clutch

    LOWER ENGINE DECK ASSY/CLUTCH BZT 2000 EFI Series FIGURE 2 2722185-02 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2722382 PUMP-PULLEY 64044-1 SCREW-SET 1/4-20X1/4 64238-03 KEY-MET 5mm SQX28mm 64164-10 1/4X1/4X1 1/4 SQ END KEY 1 2188188 PULLEY-4.25 ENGINE 2721337 CLUTCH-ELECTRIC 2721338.7 WLDMT-CLUTCH STOP 2186147.7 WLDMT-BRKT CLUTCH 38304-03...
  • Page 32 CRADLE ASSEMBLY-61" BZT 2000 EFI Series FIGURE 3...

  • Page 33: Cradle Assembly-61

    CRADLE ASSEMBLY-61" BZT 2000 EFI Series FIGURE 3 2722185-03 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2721968.5 WLDMT-CRADLE 85051 ZERK 2182356.7 BRKT-SHAFT HANGER 2186120.5 WLDMT-DECK HANGER 2188127 CHAIN-6.35 5 LINKS 64263-013 BLT-FLG HD M10-1.5 X 30 64237-03 LCKNT-NYLN M10-1.5 2188136 SWIVEL 2721868...
  • Page 34 DECALS BZT 2000 EFI Series FIGURE 4...

  • Page 35: Decals

    FIGURE 4 2722185-04 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2721992 LBL-BUNTON W/STRIPE 2721886 LABEL-BUNTON TEXTRON 1 2000735 LABEL-OPER MAN 2000590 LABEL, WARN BATTERY 2000691 LABEL - HYDR OIL FILL 2721555 LABEL-CONTROL PANEL 2000693 LABEL - PARK BRAKE 2000698...
  • Page 36 BUMPER BZT 2000 EFI Series FIGURE 5...

  • Page 37: Bumper

    BUMPER BZT 2000 EFI Series FIGURE 5 2722185-05 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2722296.7 ARM-BUMPER 2720997 S ENG DECK W/LABS 2721324.7 WLDMT-BUMPER 64263-013 BLT-FLG HD M10-1.5 X 30 (QTY 6 USED ON 72") (QTY 12 USED ON 61") 64265-05 NUT-FL NYL LOCK M10-1.5 10 64251-004 WASHER-MET M10...
  • Page 38 BRAKES/REAR WHEEL BZT 2000 EFI Series FIGURE 6...

  • Page 39: Brakes/Rear Wheel

    BRAKES/REAR WHEEL BZT 2000 EFI Series FIGURE 6 2722185-06 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2720997 S ENGINE DECK W\LABS 6-29 38020-01 CLEVIS YOKE 3/8 PLATE 2186128.7 WLDMT-BRAKE ARM LH 6-30 2183064 ROD, BRAKE 2186142.7 WLDMT-BRAKE ARM RH 6-31 64223-10 SCH CAPSCR M12-1.75X150 8...
  • Page 40 HYDRAULICS BZT 2000 EFI Series FIGURE 7...

  • Page 41: Hydraulics

    HYDRAULICS BZT 2000 EFI Series FIGURE 7 2722183-07 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2186211 S HYD RESERVOIR W/LAB 1 2720396 FILTER 25 MICRON 69216.7 CAP-RESERVOIR 108029 PLUG-MAGNETIC 158058-04 FTG-90 BRB 9/16-18X.38 108205-03 ELBOW-MALE 45 37-ORB (69053-05 IS A SERVICEABLE LENGTH OF 55") 7-7A 69053-05 3/8 HIGH TEMP HOSE 22"...
  • Page 42 HYDROGEAR PUMP BZT 2000 Series FIGURE 8...

  • Page 43: Hydrogear Pump

    HYDROGEAR PUMP BZT 2000 Series FIGURE 8 2722087-08 2721615 PUMP-HYDRO RH ILLUSTRATED AS SHOWN EXCEPT GROUP A IS ROTATED 180° AROUND THE CENTERLINE OF THE PUMP. ITEM HYDROGEAR PART NO. TEXTRON PART NO. DESCRIPTION 70516 ----- HOUSING KIT 70517 ----- END CAP KIT 50641 -----...
  • Page 44 DECALS-CUTTERDECKS BZT 2000 EFI Series FIGURE 9...

  • Page 45: Decals-Cutterdecks

    DECALS-CUTTERDECKS BZT 2000 EFI Series FIGURE 9 2722185-09 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2000572 LABEL-WARNING BLADES 1 (USED ON 61" DECKS ONLY) 2000577 LABEL, WARNING 2000696 LBL - BLADE INSTALL (USED ON 61" DECKS ONLY) 2000677 LABEL-DANGER/WARNING (USE QTY 2 ON 72"...

  • Page 46: Kohler Wire Harness

    KOHLER WIRE HARNESS BZT 2000 EFI Series FIGURE 10 2722185-10 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 10-1 2722316 HARNESS-WIRING 10-2 148082-20 FUSE-20 AMP 10-3 108061-13 CABLE-BATTERY 10-4 158135-01 SWITCH-SEAT NO 10-5 158136 WIRE-SEAT SWITCH 10-6 48030N HOUR METER ASSY 10-7 2722227-02 CABLE-BATT W/CONDUIT (INCLUDES ITEMS 16 &...
  • Page 47 KOHLER WIRE HARNESS BZT 2000 EFI Series FIGURE 10 2722185-10...
  • Page 48 FUEL TANKS/CONTROL PANEL BZT 2000 EFI Series FIGURE 11...

  • Page 49: Fuel Tanks/Control Panel

    FUEL TANKS/CONTROL PANEL BZT 2000 EFI Series FIGURE 11 2722185-11 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 11-1 2722167 TANK-FUEL LH 11-35 2722126 CLAMP-FUEL HOSE CRIMP 6 (INCLUDES ITEMS 12,18,19,23 & 27) 11-36 2722078 HARNESS-FUEL PUMP 11-37 2722117 FILTER-FUEL 11-2 2722168 TANK-FUEL RH...
  • Page 50 ELECTRIC DECK LIFT-72" BZT 2000 EFI Series FIGURE 12...

  • Page 51: Electric Deck Lift-72

    ELECTRIC DECK LIFT-72" BZT 2000 EFI Series FIGURE 12 2722185-12 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 12-1 2722723.5 WLDMT-CRADLE 12-2 64237-03 LOCKNUT-NYLN M10-1.5 12-3 2000791 LBL-OUTSIDE HOC 12-4 2182523.7 PLATE-HEIGHT ADJ OUTER 1 12-5 2183071-03 SPACER 12-6 2182524.7 PLATE-HEIGHT ADJ INNER 1 12-7 2000790 LABEL-INNER HOC...
  • Page 52 OIL COOLER/ECU BZT 2000 EFI Series FIGURE 13...

  • Page 53: Oil Cooler/Ecu

    OIL COOLER/ECU BZT 2000 EFI Series FIGURE 13 2722185-13 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 13-1 2720997 S ENGINE DECK W/LABS 13-2 2722339.7 BRKT-FRONT COOLER 13-3 2722338.7 BRKT-OIL COOLER 13-4 2720891.7 SCREEN-OIL COOLER 13-5 2188173 COOLER-OIL 13-6 2186211 S HYD RSRVR W/LABS (69053-05 IS A SERVICEABLE LENGTH OF 55") 13-7A 69053-05...
  • Page 54 SEAT ASSEMBLY & ROPS BZT 2000 EFI Series FIGURE 14...

  • Page 55: Seat Assembly & Rops

    SEAT ASSEMBLY & ROPS BZT 2000 EFI Series FIGURE 14 2187026 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 14-1 2720975 SEAT-SUSPENSION (INCLUDES ITEMS 2-10) 2720975-01 SEAT CUSHION 2720975-02 BACK CUSHION 2720975-05 CABLE ASSEMBLY (INTERNAL SEAT COMPONENT NOT ILLUSTRATED) 2720975-08 ASSY-SEAT BACK PANEL 14-2 2721093 RH ARM REST...
  • Page 56 ELECTRIC DECK LIFT-61" BZT 2000 EFI Series FIGURE 15...

  • Page 57: Electric Deck Lift-61

    ELECTRIC DECK LIFT-61" BZT 2000 EFI Series FIGURE 15 2722089-16 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 15-1 2721968.5 WLDMT-CRADLE 15-2 64237-03 LOCKNUT-NYLN M10-1.5 15-3 2000791 LBL-OUTSIDE HOC 15-4 2182523.7 PLATE-HEIGHT ADJ OUTER 1 15-5 2183071-03 SPACER 15-6 2182524.7 PLATE-HEIGHT ADJ INNER 1 15-7 2000790 LABEL-INNER HOC...
  • Page 58 STEERING/INSTRUMENTS BZT 2000 EFI Series FIGURE 16...

  • Page 59: Steering/Instruments

    STEERING/INSTRUMENTS BZT 2000 EFI Series FIGURE 16 2722185-16 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 16-1 2720997 S ENGINE DECK W/LABS 16-2 48030N HOUR METER ASSY 16-3 2722121 LAMP-ENG MALFNCTN IND 1 2722121-01 BULB 16-4 A1104057 BOLT-M10-1.50X25 16-5 2182344.7 LEVER-CONTROL 16-6 2182434.7 BRKT-TRACTION LEVER 16-7...
  • Page 60 CRADLE & CASTER ASSEMBLY BZT 2000 EFI Series FIGURE 17...

  • Page 61: Cradle & Caster Assembly

    CRADLE & CASTER ASSEMBLY BZT 2000 EFI Series FIGURE 17 2722185-17 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 17-1 48043-03C S CUP,OUTER BEARING 17-2 2721968.5 WLDMT-CRADLE (USED ON 61" ONLY) 17-3 2722723.5 WLDMT-CRADLE (USED ON 72" ONLY) 17-4 2721710.5 S-61 DECK W/LABS 17-5 2720089.5 WLDMT-CUTTERDECK 72 17-6...
  • Page 62 61" SIDE DISCHARGE BZT 2000 EFI Series FIGURE 18...

  • Page 63: 61" Side Discharge

    61" SIDE DISCHARGE BZT 2000 EFI Series FIGURE 18 2722185-18 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 18-1 2721710.5 WLDMT-CUTTERDECK 61 18-45 64123-209 BLT-HEX 5/8-18X3.5 18-2 64163-64 WSHR 1.015X1.500X14GA 18-46 64123-208 BLT-HEX 5/8-11X1 1/2 18-3 64237-05 LOCKNUT-NYLON M8-1.25 18-47 32767.7 SUPPORT-BELT 18-4...
  • Page 64 BELTS BZT 2000 EFI Series FIGURE 19...

  • Page 65: Belts

    BELTS BZT 2000 EFI Series FIGURE 19 2722185-19 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 19-1 128003 BELT-CUTTERDECK 19-2 2722224 BELT-PTO (USE ON 61" DECKS ONLY) 19-3 3970215 BELT-BLADE TO BLADE 19-4 2722554 BELT-PTO (USE ON 72" SD DECKS ONLY)
  • Page 66 72" SIDE DISCHARGE BZT 2000 EFI Series FIGURE 20...

  • Page 67: 72" Side Discharge

    72" SIDE DISCHARGE BZT 2000 EFI Series FIGURE 20 2722185-20 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 20-1 163425 ROLLER 20-51 64123-39 BLT-HEX 1/2-13X1-1/4 20-2 198027 PULLEY-6.00 DIA 20-52 64123-50 BOLT, 3/8-16X1 HEX 20-3 1985108 PULLEY- IDLER STATIONRY 1 20-53 64123-88 BOLT, 3/8-16X2-3/4 HEX...
  • Page 68 CRADLE ASSEMBLY-72" BZT 2000 EFI Series FIGURE 21...

  • Page 69: Cradle Assembly-72

    21-4 2721859 MAT-FOOT PLATE LOWER 1 21-5 2721860 MAT-FOOT PLATE MIDDLE 1 21-6 2721861 MAT-FOOT PLATE UPPER 21-7 2721992 LABEL-BUNTON STRIPE 21-8 2721868 S-FOOT PLATE W/LABS (INCLUDES ITEMS 4-6) 21-9 64215-07 RIVET-POP IFI #84 21-10 2722454 CHAIN-6.35 (1/4) 3 LINKS 21-11 2722558.5 WLDMT-DECK LIFT, FRONT 1...

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Bzt 2260efi 26hp klr w/61Bzt 2260efi 26hp klr w/72642230642231

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