Textron JACOBSEN JZT1250 PWR UNIT Setup, Parts & Maintenance Manual
  1. Manuals
  2. Brands
  3. Textron Manuals
  4. Lawn Mower
  5. JACOBSEN JZT 1250 CUTTERDECKS
  6. Setup, parts & maintenance manual
Textron JACOBSEN JZT1250 PWR UNIT Setup, Parts & Maintenance Manual

Textron JACOBSEN JZT1250 PWR UNIT Setup, Parts & Maintenance Manual

Hide thumbs Also See for JACOBSEN JZT1250 PWR UNIT:
Table of Contents

Advertisement

Quick Links

Download this manual
SETUP, PARTS & MAINTENANCE
MANUAL JZT1250 PWR UNIT
Power Unit Model:
742105-POWER UNIT-JZT1250
( Operation & Safety Manual: 4124226 )
For Cutterdecks:
754804-CUTTERDECK JZT1250 48 COLLECT
( Parts Manual: 4124227 )
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.
4124225 REV A

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the JACOBSEN JZT1250 PWR UNIT and is the answer not in the manual?

Questions and answers

Related Manuals for Textron JACOBSEN JZT1250 PWR UNIT

Summary of Contents for Textron JACOBSEN JZT1250 PWR UNIT

  • Page 1 SETUP, PARTS & MAINTENANCE MANUAL JZT1250 PWR UNIT Power Unit Model: 742105-POWER UNIT-JZT1250 ( Operation & Safety Manual: 4124226 ) For Cutterdecks: 754804-CUTTERDECK JZT1250 48 COLLECT ( Parts Manual: 4124227 ) 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 © 2002, TEXTRON INC...

  • Page 3: Table Of Contents

    You'll always be glad you did. Textron Golf, Turf & Specialty Products One Bob Cat Lane Johnson Creek, WI 53038-0469...

  • Page 4: Safety

    Textron Golf, Turf & Specialty Products– will result in the Textron Golf, Turf & Specialty Products Warranty being voided. DANGER indicates an imminently hazardous situation which, if not avoided, WILL result in death Any and all liability for personal injury and/or property or serious injury.
  • Page 5 ASSEMBLY AND SETUP JZT 1000 Series TOOLS REQUIRED FOR ASSEMBLY – Wrecking bar – Claw hammer – Ratchet: 3/8" drive – Sockets:10 mm – Pliers Side Cutter or Jack knife NOTE: All references below to the "right" or "left" are with respect to an operator at the controls. 1.
  • Page 6 ASSEMBLY AND SETUP JZT 1000 Series Cut the wire tie holding the PTO shaft to the deck. Rear Discharge Collection Decks Only; Bolt the discharge chute to the rear of the cutterdeck with (2) M6x16 carriage bolts, (2) M6 nylon locknuts and (2) washers. The head of the carriage bolt should be inside the chute.

  • Page 7: Assembly And Setup

    ASSEMBLY AND SETUP JZT 1000 Series 7. Have a helper lift the cutterdeck carrier frame as high as it will go. Connect a counterbalance spring from the carrier frame to the pin on the tractor. 8. Locate the cutterdeck height of cut posts C under the corresponding bushings of the cutterdeck carrier frame.
  • Page 8 MAINTENANCE CHART JZT 1000 Series t l i & t l i...
  • Page 9 MAINTENANCE RECORD JZT 1000 Series NOTES _______________________________________________________________ ____________________________________________________ ________________________________________________________________________ _______________________________________________________________ ____________________________________________________________ ____________________________________________________ ________________________________________________________________________ _______________________________________________________________ ____________________________________________________________ _______________________________________________________________ ____________________________________________________________ ____________________________________________________________ & & r i f , l i t l i...
  • Page 10 MAINTENANCE JZT 1000 Series CHECK DAILY Operator Presence Interlock System - Start Operation For the engine to crank, the parking brake must be on, the PTO (blades) off and traction levers in the neutral position. Sit in the seat and check, one by one, if the engine will crank with the parking brake off, the blades on, and either traction lever out of neutral.
  • Page 11 MAINTENANCE JZT 1000 Series LUBRICATION Every 50 hours of operation, lubricate the following points with grease: 1. Rear caster pivot (1 point) 2. Rear caster bearing (1 point) 3. Deck pivot (2 points, every 100 hrs.) 4. Pusharm (2 points, every 100 hrs.) 5.
  • Page 12 MAINTENANCE JZT 1000 Series HYDRAULIC SYSTEM Check fluid level in the hydraulic system 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. The fluid level should be at the bottom of the filler tube.
  • Page 13 MAINTENANCE JZT 1000 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 plug D and drain the crankcase. Dispose of used oil in accordance with local requirements.
  • Page 14 MAINTENANCE JZT 1000 Series AIR CLEANER The air cleaner with this engine has a high density paper air cleaner cartridge. It should be inspected regularly and maintained. Uneven running, lack of power or black exhaust fumes may indicate a dirty air cleaner.

  • Page 15: Maintenance

    MAINTENANCE JZT 1000 Series BLADE BALANCE BLADE REMOVAL Follow these instructions to prevent injury during Blade balance must be maintained at 5/8 oz-in (19.4 blade removal: g-cm) or less. Failure to keep blades balanced 1. Loosen with a box wrench or a socket and long causes excess vibration, wear, and shortened life of breaker bar.
  • Page 16 ADJUSTMENTS JZT 1000 Series HEIGHT OF CUT The height of cut is set by raising or lowering the cutterdeck on the carrier frame. To change the height of cut: 1. Hold the deck up with the handle H provided. 2. Remove the hairpin cotters on one side. 3.
  • Page 17 ADJUSTMENTS JZT 1000 Series PARKING BRAKE Adjust the parking brake to provide 1/4” travel in each cable before the slack is taken up. To adjust: 1. Start with the brake in the 'OFF' position. 2. Remove the pin P holding the brake links to the brake cable ends.

  • Page 18: Adjustments

    ADJUSTMENTS JZT 1000 Series HYDROSTAT ADJUSTMENTS A turnbuckle-style hydrostat neutral adjustment is provided. Neutral: Support the machine with the drive wheels off the ground. Use jackstands or equivalent support. Do not rely only on mechanical or hydraulic jacks. Move the traction levers into the neutral position and raise the seat and grass collection hopper or utility box.
  • Page 19 BELT REPLACEMENT JZT 1000 Series Note: Always use Jacobsen replacement belts, not general purpose belts. Jacobsen belts are specially designed for use on commercial mowers and will normally last longer. ENGINE-CUTTERDECK (PTO) BELT Raise the seat and grass collection hopper or utility box.
  • Page 20 BELT REPLACEMENT JZT 1000 Series ENGINE- PUMP BELT 1. Remove the Engine-Gearbox belt. See Engine-Gearbox belt in the preceding section. 2. Use a 9/16" wrench on the bolt B securing the idler pulley to rotate the idler arm enough to remove the belt from the idler and pump pulleys.
  • Page 21 BELT REPLACEMENT JZT 1000 Series GEARBOX-BLOWER BELT 1. Raise the grass collection hopper. 2. Insert a 3/8" rachet in the square hole on the Gearbox-Blower idler arm. Use it to rotate the arm enough to remove the belt from the gearbox pulley.
  • Page 22 BELT REPLACEMENT JZT 1000 Series 10. Check the belt after the first several hours of operation for slack. If there is any slack, repeat step 9. NOTE: Timing belts use fiberglass or Aramid fiber cords which have very little stretch. Once properly tensioned, no further adjustment is usually necessary.

  • Page 23: Specifications

    SPECIFICATIONS JZT 1000 Series POWER UNITS CONTROLS: ENGINES : Throttle; choke; power takeoff (PTO) clutch switch; Construction: Aluminum block with cast-in cast iron traction levers; parking brake lever. sleeves. Aluminum head. Configuration: 4-stroke, horizontal shaft, V-twin FUEL SYSTEM: cylinder, overhead valve, air-cooled. 5.3 gallon capacity with a fuel shutoff valve (1/4 turn).
  • Page 24 SPECIFICATIONS JZT 1000 Series ENGINES MODEL NUMBER 742105 MANUFACTURER Kohler MODEL CH25S CYLINDERS COOLING 3.27/2.64"" BORE/STROKE (83/67 mm) DISPLACEMENT 44 cu.in. (725 cc) COMPRESSION 25 hp (18.4 kW) OUTPUT POWER @ 3600 rpm 39.5 ft-lb (54 N-m) OUTPUT TORQUE @ 2400 rpm LUBRICATION FULL PRESSURE GOVERNOR...
  • Page 25 SPECIFICATIONS JZT 1000 Series CUTTERDECKS MODEL NUMBER 754804 Rear Discharge TYPE Collection CUTTING WIDTH 48" (122 cm) WIDTH 49.5" (126 cm) BLADES High Lift NUMBER OF BLADES BLADE LENGTH 25" (635 mm) BLADE THICKNESS .250" (6.35 mm) 17012 ft/min TIP SPEED 5185 m/min DAILY PRODUCTION 23.3 acres (9.4 ha)
  • Page 26 ENGINE & FRAME ASSEMBLY JZT 1000 Series FIGURE 1...
  • Page 27 ENGINE & FRAME ASSEMBLY JZT 1000 Series FIGURE 1 4124225-01 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 64164-12 1/4X1/4X1 SQ KEY 1-44 2226015.7 WLDMT-RESERVOIR 2228070 ENGINE-KOHLER CH25S 1-45 64123-15 BOLT-HEX 3/8-16X3/4 2188188 PULLEY-4.25 1-46 810149 BUMPER-RUBBER 2721337 CLUTCH, ELECTRIC 1-47 48319-01 CLAMP-MUFFLER 1-3/8...
  • Page 28 WHEELS & BRAKES JZT 1000 Series FIGURE 2...

  • Page 29: Wheels & Brakes

    WHEELS & BRAKES JZT 1000 Series FIGURE 2 4124225-02 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2228014 ASSY-WHL&TIRE 18X10.5-8 2 2-30 64144-24 SNAP RING 1.00 EXT ** 2228014-01S-10.0" RIM ASSY W/VL 2-31 2223017 SPACER ** 2228014-02S-TIRE-18X10.5-8 MULTI 2-32 148042 BALL BRG 1.00 10 ** 2228083 S-TIRE-18X11-10 FAST TR...
  • Page 30 FRONT PANEL & PUSH ARMS JZT 1000 Series FIGURE 3...

  • Page 31: Front Panel & Push Arms

    FRONT PANEL & PUSH ARMS JZT 1000 Series FIGURE 3 4124225-03 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2226001.7 WLDMT-RCVR PUSHARM 3-41 38372 BEARING-BALL 64168-2 HAIRPIN COTTER 3-42 2222144.7 GUIDE-DECK CHUTE 64229-05 LOCKNUT-NYL 1/2-13 3-43 64197-016 BOLT-TDFM 3/8-16X1/2 2228047 BEARING-NYL FLNGD 3-44 64163-02...
  • Page 32 PUMPS & CONTROL PANEL JZT 1000 Series FIGURE 4...

  • Page 33: Pumps & Control Panel

    PUMPS & CONTROL PANEL JZT 1000 Series FIGURE 4 4124225-04 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 108055 BATTERY 4-47 64025-33 NUT-HEX 5/16-24 LH 2222125.7 BRKT-BATTERY HLDDWN 4-48 38369-02 ROD END BALL JOINT LH 2228048 BOLT-BATTERY HOOK 4-49 4121333 PUMP-HYDRO BDP-10A-440 1 64229-01 LOCKNUT-NYLON 1/4-20...
  • Page 34 BLOWER & FUEL TANK JZT 1000 Series FIGURE 5...

  • Page 35: Blower & Fuel Tank

    BLOWER & FUEL TANK JZT 1000 Series FIGURE 5 4124225-05 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2226031.7 WLDMT-IDLER BLOWER 5-35 64237-05 LOCKNUT-NYL M8-1.25 (INCLUDES ITEM 2) 5-36 64123-50 BOLT-HEX 3/8-16X1 5-37 64141-4 NUT-WLF 3/8-16 65103A BEARING BUSHING 5-38 3009269 CLAMP-HOSE TWISTED 64229-03...
  • Page 36 BELTS JZT 1000 Series FIGURE 6...

  • Page 37: Belts

    BELTS JZT 1000 Series FIGURE 6 4124225-06 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2721068 BELT-PUMP 2721069 BELT-ENGINE PUMP 2721065 BELT-PTO 2721067 BELT-BLOWER...
  • Page 38 BUMPER & GRASSBOX FRAME JZT 1000 Series FIGURE 7...
  • Page 39 BUMPER & GRASSBOX FRAME JZT 1000 Series FIGURE 7 2720222 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 64123-206 BLT-HEX 5/8-11X4-1/2 64229-06 LOCKNUT-NYLON 5/8-11 2198153 ROLLER, 3 2226011.7 WLDMT-BUMPER 64123-50 BLT-HEX 3/8-16X1 64229-03 LOCKNUT-NYLON 3/8-16 2222049.7 BRACE-FRAME 2222178.7 PLATE-CYLINDER MTG 64123-47 BLT-HEX 5/16-18X1-1/4 7-10...
  • Page 40 HEAVY DUTY AIR CLEANER JZT 1000 Series FIGURE 8...
  • Page 41 HEAVY DUTY AIR CLEANER JZT 1000 Series FIGURE 8 2228089-01 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 4114350.7 BUMPER-AIR CLNR UPPER 1 4114359.7 BUMPER-AIR CLNR LOWER 1 4109180.7 BRACE-FRAME 4109261.7 BRACKET-A/C MOUNTING 2198297 CLAMP-AIR CLEANER 2722703 HOSE-AIR 64123-50 BOLT-HEX 3/8-16X1 64229-03 LOCKNUT-NYLON 3/8-16 64123-47...
  • Page 42 GRASSBOX JZT 1000 Series FIGURE 9...
  • Page 43 GRASSBOX JZT 1000 Series FIGURE 9 4124225-09 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2222198.7 SCREEN-GRASSBOX 9-41 2720928.7 WELDMENT-LIFT HANDLE 4124677 CHUTE-GRASSBOX 9-42 2720933.7 BRKT-LIFT OUTER RH 2222107.7 SCREEN-SLIDE A 9-43 2720936.7 BRKT-LIFT INNER 2222108.7 SCREEN-SLIDE B 9-44 2720934.7 BRKT-LIFTOUTER LH 2720449.7 SUPPORT-GRASSBOX 9-45 2720935.7 BRKT-LIFT STOP...
  • Page 44 ELECTRICAL JZT 1000 Series FIGURE 10...
  • Page 45 ELECTRICAL JZT 1000 Series FIGURE 10 2720225 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 10-1 2228060 HARNESS-WIRE 100 KHLR 1 10-2 148082-20 FUSE 20 AMP 10-3 108061-10 CABLE-BATTERY 49 RED 10-4 158135-01 SWITCH-SEAT, NO 10-5 2308095 COVER-TERMINAL 10-6 48030N HOUR METER ASSEMBLY 10-7 108061-14 CABLE-BATTERY 45 BLK...
  • Page 46 HYDRAULICS JZT 1000 Series FIGURE 11...
  • Page 47 HYDRAULICS JZT 1000 Series FIGURE 11 2720226 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 11-1 2226015.7 WLDMT-RESERVOIR W/LAB 1 11-2 2720396 FILTER 25 MICRON 11-3 69216.7 CAP-RESERVOIR 11-4 108029 PLUG-MAGNETIC 11-5 2188173 COOLER-OIL (69053-05 IS A SERVICEABLE LENGTH OF 55") 11-6A 69053-05 3/8 HIGH TEMP HSE 49"...
  • Page 48 SEAT ASSEMBLY JZT 1000 Series FIGURE 12...
  • Page 49 SEAT ASSEMBLY JZT 1000 Series FIGURE 12 2720227 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 12-1 198057 SEAT 12-2 64139-16 BOLT-WLF 5/16-18X5/8 12-3 2222170.7 PLATE-SEAT 12-4 158135-01 SWITCH-SEAT, NO 12-5 64152-23 1/4-20X3/8 LG SP SCR 12-6 64188-38 PIN, CLEVIS 12-7 64175-04 PUSHNUT 3/8 DIA...
  • Page 50 DECALS-GRASSBOX JZT 1000 Series FIGURE 13...
  • Page 51 DECALS-GRASSBOX JZT 1000 Series FIGURE 13 4124225-13 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 13-1 2000691 LBL - HYDR OIL FILL 13-2 4124228 LBL-CNTRL PNL JZT1250 13-3 2000735 LBL-OPER MAN 13-4 2000774 LBL-PARK BRAKE 13-5 2000590 LBL, WARN BATTERY 13-6 2000775 LBL-DANGER...
  • Page 52 OPTIONAL FILL INDICATOR : 970145 JZT 1000 Series FIGURE 14...
  • Page 53 OPTIONAL FILL INDICATOR : 970145 JZT 1000 Series FIGURE 14 2720230 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 14-1 2222153 PADDLE-FILL INDICATOR 14-2 64215-02 RIVET-POP IFI# 44 14-3 2228057 SWITCH-POLARITY 14-4 2228055 BLOCK-MOTOR ADAPTOR 14-5 64229-01 LOCKNUT-NYL 1/4-20 14-6 64123-60 BLT-HEX 1/4-20X2 14-7...
  • Page 54 HYDROGEAR PUMP JZT 1000 Series FIGURE 15...

  • Page 55: Hydrogear Pump

    AROUND THE CENTERLINE OF THE PUMP AND THE POSITION OF “42A” & “42B” ARE REVERSED. 4121333 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...
  • Page 56 BRAKE ASSEMBLY JZT 1000 Series FIGURE 16...
  • Page 57 BRAKE ASSEMBLY JZT 1000 Series FIGURE 16 2720232 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION SERVICE PARTS FOR 2188147 AND 2188148 BRAKE ASSEMBLIES 2188147-01 BRACKET-MACHINED 2188147-02 PAD-CAM SIDE 2188147-03 PAD-SUPPORT 2188147-04 SPRING-LEVER RETAINER 2188147-05 HOUSING 2188147-06 CAM LH 2188147-07 PIVOT PIN 2188147-08 PAD-CARRIER SIDE...

This manual is also suitable for:

Jacobsen jzt1250 48 collect742105754804

Table of Contents