Kubota Zg20 Zero Turn Mower Workshop Service Repair Manual

ZG20, ZG23, WSM SAFETY INSTRUCTIONS ASAFETY FIRST This symbol, the industry's "Safety Alert Symbol" is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully.lt is essential that you read the • instructions and safety regulations before you attempt to repair or use this unit. A DANGER • Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. A WARNING • Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. A CAUTION • Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. _IMPORTANT • Indicates that equipment or property damage could result if instructions are not followed. I_NoTE • Gives helpful information. 0000000752E BEFORE SERVICING AND REPAIRING • Read all instructions and safety instructions in this manual and on your machine safety decals. • Clean the work area and machine. • Park the machine on a firm and level ground, and set the parking brake. • Lower the implement to the ground. • Stop the engine, and remove the key • Disconnect the battery negative cable • Hang a "00 NOT OPERATE" tag in operator station. 0000000753E SAFETY STARTING • Do not start the engine by shorting across starter terminals or bypassing the safety start switch. • Do not alter or remove any part of machine safety system. • Before starting the engine, make sure that all shift levers are in neutral positions or in disengaged positions. • Never start the engine while standing on ground. Start the engine only from operator's seat. 0000000754E

ZG20, ZG23, WSM SAFETY INSTRUCTIONS SAFETY WORKING • Do not work on the machine while under the influence of alcohol, medication, or other substances or while fatigued. • Wear close fitting clothing and safety equipment appropriate to the job. • Use tools appropriate to the work. Makeshift tools, parts, and procedures are not recommended. • When servicing is performed together by two or more persons, take care to perform all work safely. • Do not work under the machine that is supported solely by a jack. Always support the machine by safety stands. • Do not touch the rotating or hot parts while the engine is running. • Never remove the radiator cap while the engine is running, or immediately after stopping. Otherwise, hot water will spout out from radiator. Only remove radiator cap when cool enough to touch with bare hands. Slowly loosen the cap to first stop to relieve pressure before removing completely. • Escaping fluid (fuel or hydraulic oil) under pressure can penetrate the skin causing serious injury. Relieve pressure before disconnecting hydraulic or fuel lines. Tighten all connections before applying pressure. 0000000755E AVOID FIRES • Fuel is extremely flammable and explosive under certain conditions. Do not smoke or allow flames or sparks in your working area . • + - • To avoid sparks from an accidental short circuit, always disconnect the battery negative cable first and connect it last. • Battery gas can explode. Keep sparks and open flame away from the top of battery, especially when charging the battery. • Make sure that no fuel has been spilled on the engine. 0000000756E 2

ZG20, ZG23, WSM SAFETY INSTRUCTIONS VENTILATE WORK AREA • If the engine must be running to do some work, make sure the area is well ventilated. Never run the engine in a closed area. The exhaust gas contains poisonous carbon monoxide. 0000000757E PREVENT ACID BURNS • Sulfuric acid in battery electrolyte is poisonous. It is strong enough to burn skin, clothing and cause blindness if splashed into eyes. Keep electrolyte away from eyes, hands and clothing. If you spill electrolyte on yourself, flush with water, and get medical attention immediately. 0000000758E DISPOSE OF FLUIDS PROPERLY • Do not pour fluids into the ground, down a drain, or into a stream, pond, or lake. Observe relevant environmental protection regulations when disposing of oil, fuel, coolant, electrolyte and other harmful waste. 0000000759E PREPARE FOR EMERGENCIES • Keep a first aid kit and fire extinguisher handy at all times. • Keep emergency numbers for doctors, ambulance service, hospital and fire department near your telephone. 0000000760E 3

ZG20. ZG23, WSM SAFETY INSTRUCTIONS SAFETY DECALS The following safety decals are installed on the machine. If a decal becomes damaged, illegible or is not on the machine, replace it. The decal part number is listed in the parts list. DANGER, WARNING AND CAUTION LABELS (1) Part No. K3211-6585-1 A CAUTION WWfIIIW (2) Part No. K5617-7312-1 (3) Part No. K5617-7311-1 ADANGER I SfJ ADANGER DC ~J~ ~JT H~~DS OR :EET IN~O i:8:I:R '::HE\ tNG NE liJI ,S q\;V~ t~G 3GZAAADCP016A 0000006685E 4

ZG20, ZG23. WSM SAFETY INSTRUCTIONS (1) Part No. K3211-6581-1 (2) Part No. K3211-6592-2 (2) Part No. K3211-6583-1 3GZAAADCPOO1 A 00OO006693E 5

ZG20, ZG23, WSM SAFETY INSTRUCTIONS (1) Part No. K3211-6562-1 (4) Part No. K3211-6564-1 (5) Part No. K3211-6563-1 Gasoline fuel No fire only GASOLINE (2) Part No. K3211-6586-1 (3) Part No. K3211-6532-1 [~ 3GZAAADCP002A 0000006686E 6

ZG20, ZG23, WSM SAFETY INSTRUCTIONS 3GZAAADOP057A (1) Part No. K1221-6117-1 A DANGERI POISON ~ ~ NO SHIElD EYES EXPLOSNE -SPARKS GASES •FLAMES CAN CAUSE BLINDNESS -SMOKING OR INJURY =--= ~ SULFURIC ACID CAN CAUSE BLINDNESS OR SEVERE BURNS ~G FLUSH GET EYES MEDICAL IMMEDIATELY HELP FAST WITH WATER (2) Part No. K3211-6586-1 CARE OF DANGER, WARNING AND CAUTION LABELS 1. Keep danger, warning and caution labels clean and free from obstructing material. 2. Clean danger, warning and caution labels with soap and water, dry with a soft cloth. 3. Replace damaged or missing danger, warning and caution labels with new labels. 4. If a component with danger, warning or caution label (s) affixed is replaced with new part, make sure new label (s) is (are) attached in the same location (s) as the replaced component. 5. Mount new danger, warning and caution labels by applying on a clean dry surface and pressing any bubbles to outside edge. 3GZAAADCP003A 0000006688E 7

ZG20, ZG23, WSM SPECIFICATIONS SPECIFICATIONS Model ZG20 ZG23 Model GH630H GH680H I Type Forced air-cooled, Horizontal shaft OHV, 4-stroke gasoline engine I Number of cylinder 2 (V-Twin) Bore and stroke 77 x 67 mm (3.03 x 2.64 in.) 80 x 67 mm (3.18 x 2,64 in.) Total displacement 624 cm 3 (38.1 cu.in.) 674 cm:J (41.1 cu.in.) I Maximum horsepower 14.9 kW 120 HP 17.2 kW 123 HP , Maximum torque 44.2 N·m 1 2600 min- 1 51,7 N'm/2200 (4,5 kgf'm 12600 rpm. 32,6 It-Ibs 12600 rpm) (5.3 kgf-m 12200 rpm, 38.21t-lbs 1 Direction of rotation Counterclockwise facing the PTO shalt Ignition system Engine Compression ratio Flywheel Spark plug Air cleaner ' "vashable form Governor Lubricating system II -", pump i r----' Cooling system Forced air cooling i Starting system Electric starter with battery Battery U1L·9 (12 V, RC : 30 min, CCA: 285, CA: 340) I Throttle system Manual Engine stop system Key stop Fuel tank 23 L (6.0 U.S,gals, 5,1 Imp,gals) I Capacities Engine crankcase 1,9 L (2,0 U,S,qts, 1,7 Imp.qts) Hydrostatic transmission case 7.5 L (7.9 U.S.qts, 6,6Imp,qts) Overall length 1950 mm (76,8 in.) i Overall width 1210 mm (47,7 in.) With ROPS 1775 mm (69,8 in,) I Overall upright Dimensions height With ROPS folded 1320 mm (51.9 in.) Wheel base 1185 mm (46.7 in,) i Tread Front 860 mm (33.9 in.) i i I Rear 930 mm (36,6 in.) Weight (with mower deck) Stamped 480 kg (1058Ibs) 48 in. 500 kg (1102 Ibs) 54 in. deck 8

ZG20, ZG23, WSM SPECIFICATIONS Model ZG20 I ZG23 Tire size Front 13 x 5.0 -6 (4PR) Rib Rear 23 x 10.5 -12 (4PR) Turf Steering system 2 - Hand levers i Transmission 2 - HST W I Gear Parking Brake Wet multi disk I Foot released ! Traveling speed Forward o to 14.5 km I h (0 to 9.0 mph) Reverse o to 8.0 km I h (0 to 5.0 mph) PTO Revolution 1 speed (2530 rpm at 3200 engine rpm) Drive system Shaft drive. KUBOTA 10 tooth involute spline (2530 rpm) Clutch type Wet multi disks PTO brake Wet multi disks Model RCK48-20ZG RCK54-23ZG Mower deck Suitable machine ZG20 ZG23 Total length 890 mm (35.0 in.) Total width 1550 mm (61.1 in.) 1700 mm (67.0 in.) Total height 310 mm (12.2 in.) Mounting method Quick joint, Parallel linkage Adjustment of cutting height Dial gauge Cutting width 1225 mm (48 in.) 1375 mm (54 in.) Cutting height 25 to 127 mm (1.0 to 5.0 in.) Number of blades 3 Weight (Approx.) 82 kg (180.8 Ibs) 86 kg (189.6Ibs) Discharge Right side 0OO0006422E 9

ZG20, ZG23, WSM DIMENTIONS DIMENSIONS - ~ ~ 00 "'0 "'I'- 00') NN <:J<:J NN 0 <D co 0') N <:J N 0 N <:J N Unit: mm (in.) g (j) 0') N <:J N 6 N <:J N ZG20-ZG231185(46.7) ZG20 -ZG23 1950 (76.8) 0000006689E 3GZAAADFP001A 10

Kubota Zg20 Zero Turn Mower Workshop Service Repair Manual

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