Page 2
KUBOTA Corporation is ··· ASTM American Society for Testing and Materials, USA Feet Per Minute Since its inception in 1890, KUBOTA Corporation has grown to Hydrostatic Transmission rank as one of the major firms in Japan. Meters Per Second To achieve this status, the company has through the years...
Page 3
FOREWORD You are now the proud owner of a KUBOTA ZERO TURN MOWER. This machine is a product of KUBOTA's quality engineering and manufacturing. It is made of excellent materials and under a rigid quality control system. It will give you long, satisfactory service.
6. Motion control lever ........................... 33 6.1 Stop position of the motion control lever .................... 33 6.2 Operating position of the motion control lever..................34 6.3 Re-start on slopes ..........................35 STOPPING THE MACHINE..........................36 PARKING THE MACHINE ..........................36 ZG327A-AU...
Page 5
4. Cleaning engine oil cooler fins........................62 5. Checking the fuel filter ..........................63 6. Cleaning fuel filter bowl ..........................64 7. Adjusting parking brake ..........................65 7.1 Check brake spring ..........................65 7.2 Check on the slope ..........................66 ZG327A-AU...
Page 6
4.2 Aligning the motion control levers ...................... 79 MOWER DECK LEVEL............................80 1. Anti-scalp rollers ............................80 2. Leveling the mower deck (side-to-side) ..................... 80 3. Leveling the mower deck (front-to-rear) ....................81 GENERAL TORQUE SPECIFICATION ......................83 TIGHTENING TORQUE CHART ........................84 STORAGE..........................85 ZG327A-AU...
Page 7
REMOVING THE MACHINE FROM STORAGE....................85 1. Fuel................................85 2. Inspecting and cleaning fuel filter bowl ...................... 86 TROUBLESHOOTING .......................88 ENGINE TROUBLESHOOTING ......................... 88 BATTERY TROUBLESHOOTING........................90 MACHINE TROUBLESHOOTING ........................90 MOWER TROUBLESHOOTING......................... 91 ENGINE EMISSION RELATED INFORMATION ...............93 INDEX............................94 ZG327A-AU...
• Use only implements approved by KUBOTA. Use • Do not wear loose, torn, or bulky clothing around proper ballast on the front or rear of the machine to the machine.
Page 9
2. ROPS • The ROPS is an integral and effective safety device. • KUBOTA recommends the use of a roll-over protective structure (ROPS) and seat belt in almost all applications. This combination will reduce the risk of serious injury or death, should the machine be upset.
Page 10
• Use special caution when changing direction on the watchful care of another responsible adult. slopes. Slow down, and use extra caution when • Be alert and turn the machine off if children enter changing direction on a slope. the area. ZG327A-AU...
Page 11
3. Do not refuel the machine indoors and always equipment. clean up spilled fuel or oil. • Use the PTO with KUBOTA approved attachments. 4. Do not store the machine or fuel container The speed of PTO: inside where there is an open flame, such as in ZG327A-AU: 2530 rpm at 3200 engine rpm a water heater.
Page 12
[UPPER] and [LOWER] levels. are tight and that lines, pipes, and hoses are not • Keep a first aid kit and fire extinguisher handy at all damaged. times. ZG327A-AU...
Page 13
For your safety, do not rely on hydraulically supported devices as they may leak down, suddenly drop or be accidently lowered. • Consult your local recycling center or KUBOTA Dealer to learn how to recycle or get rid of waste products.
Page 17
• Clean safety labels with soap and water, and dry with a soft cloth. • Replace damaged or missing safety labels with new labels from your local KUBOTA Dealer. • If a component with safety label(s) attached is replaced with a new part, make sure new label(s) is (are) attached in the same location(s) as the replaced component.
However, when in need of parts or major service, be sure to consult your local KUBOTA Dealer. When in need of parts, be prepared to give your dealer the product identification number (PIN), and the ROPS, engine and mower serial numbers.
(in.) 0 (0) Revolution 1 speed (2530 rpm at 3200 engine rpm) Drive system Shaft drive, KUBOTA 10 tooth involute spline Clutch type Wet multi disks PTO brake Wet single disk Specifications and design subject to change without notice.
Page 20
Blade tip velocity m/s (fpm) 92.0 (18100) Blade length mm (in.) 523 (20.6) Number of blades Total length mm (in.) 1002 (39.4) Dimensions Total width mm (in.) 1911 (75.2) Total height mm (in.) 358 (14.1) Engine maximum rpm ZG327A-AU...
IMPLEMENT LIMITATIONS IMPLEMENT LIMITATIONS The KUBOTA Machine has been thoroughly tested for proper performance with implements sold or approved by KUBOTA. Use with implements below may result in malfunctions or failures of the machine, damage to other property and injury to the operator or others.
6. Slide the mower deck under the machine, and make sure that the mower gear box is placed properly in the center of the machine. 7. Depress the hydraulic lift control pedal (DOWN) and pull down the lift links. ZG327A-AU...
Pull back the coupler of the universal joint. Push the universal joint onto the PTO shaft until the coupler locks. IMPORTANT : • Tug the universal joint backward and forward to make sure it is locked securely. (1) Universal joint (A) “PULL” (2) Coupler ZG327A-AU...
To apply the parking brake: a. Depress the parking brake pedal firmly with your right foot and the parking brake lock pedal simultaneously with your left foot. b. Then release the parking brake pedal while holding the parking brake lock pedal down. ZG327A-AU...
Do not jump start using another battery. Consult your (1) Motion control lever (LH) (A) “NEUTRAL LOCK” position local KUBOTA Dealer. (2) Motion control lever (RH) (B) “NEUTRAL” position (C) “FORWARD” • Do not turn the key switch while the engine (D) “REARWARD”...
Turn the carburetor fuel valve to [STOP] (CLOSE) position and wait until the engine STOPPING THE ENGINE stops. Then contact your local KUBOTA Dealer immediately. 1. After slowing the engine to half speed, turn the key switch to the “OFF” position.
1. The fuel gauge shows the amount of fuel left in the “OFF” position for about 60 seconds. LH tank. • When the engine is running: It works normally. 4. Hour meter This meter gives readings for the hours the machine has been operated. ZG327A-AU...
If the ambient temperature is below 0 ℃ (32 ℉) and the properly. Unless corrected, the unit will be engine is very cold, start it in the following manner: damaged. Contact your local KUBOTA Dealer 1. Pull the choke knob out. for adjustment.
Page 31
• Use only same voltage for jump starting. • Use of a higher voltage source on the machine could result in severe damage to the machine electrical system. Use only a matching voltage source when “jump starting” a low or dead battery. ZG327A-AU...
• Do not direct the opening of the discharge deflector at bystanders or animals. Ejected DANGER objects may cause injury. Plan your mowing To avoid serious injury or death: carefully before starting operation. ZG327A-AU...
To avoid serious injury or death: implements and attachments. • Make sure that both lock pins are properly If interference occurs, contact your KUBOTA installed and secured with the snap pins. Dealer. • Do not use your fingers to align the holes.
• Make adjustments to the seat only while the machine is stopped. • Make sure that the seat is completely secured after each adjustment. • Do not allow anyone other than the driver to (1) Lock pin (2) Snap pin ride on the machine. (3) Knob bolt ZG327A-AU...
To lower the implement, depress the hydraulic lift Unlock the travel adjust lever and slide the seat control pedal (DOWN). backward or forward, as required. The seat will lock in To raise it, depress the hydraulic lift control pedal (UP). position when the lever is released. ZG327A-AU...
WARNING activated, the hydraulic mechanism is not To avoid serious injury or death: adjusted properly. Contact your local KUBOTA • Understand how to use the motion control Dealer for adjustment. levers and practice in an unrestricted area at •...
Forward and rearward motion: 1. Move the throttle lever to the “FAST” position. 2. Release the parking brake. 3. Move both motion control levers from “NEUTRAL LOCK” position inward “NEUTRAL” position. 4. To move your machine, see the following figures. ZG327A-AU...
• The motion control linkages are adjustable. (If adjustment is required, see ADJUSTMENT on page 78.) We recommend you to contact your local KUBOTA Dealer. 6.3 Re-start on slopes Sharp (zero) left turn: WARNING Push the right motion control lever forward and pull the To avoid serious injury or death: left motion control lever rearward at the same time.
• For a long distance transit, lower the mower from backfiring before stopping the engine. deck to the lowest position. 2. Do not attempt to tow this machine, or damage to the transmission may result. 3. When driving the machine over a long distance: ZG327A-AU...
WORK LIGHT (OPTIONAL KIT) OPERATING THE MACHINE • Turn the cutting height control dial to 5 in. position. • Lower the mower deck by depressing the hydraulic lift control pedal (DOWN). WORK LIGHT (OPTIONAL KIT) (1) Work light ZG327A-AU...
Allow the grass to grow to 80 mm (3 in.), then cut off only the top 25 mm (1 in.). 5. Clippings may be left on the lawn unless they form clumps or rows. ZG327A-AU...
Page 42
19 mm (0.75 in.). IMPORTANT : • Never allow the rollers to contact the ground continuously as premature roller wear may develop if set incorrectly. • Anti-scalp rollers must maintain a minimum clearance of 6 mm (0.25 in.) to the ground. ZG327A-AU...
(70) 4.75" (121) (76) 5.00" (127) (83) For cutting heights above 3.0". The anti-scalp rollers will still be effective against scalping. Use it if necessary. For cutting heights above 3.5". The anti-scalp rollers will still be effective against scalping. ZG327A-AU...
(Operator presence control) 2. Before starting the engine, pull the PTO lever to the “DISENGAGED” (OFF) position. If it is at the “ENGAGED” (ON) position, the engine will not start. NOTE : • These safety features are built-in. ZG327A-AU...
(4) Dust cover (1) Ground (B) “NORMAL” 1. Park the machine on a firm and level surface. (A) “INSUFFICIENT” (C) “EXCESSIVE” 2. Stop the engine and apply parking brake. 3. Lift the front of machine with a safe lifting device. ZG327A-AU...
• Insert the wheel bolt from the outside of the yoke. • Tighten the nut gradually until the wheel bearing play is eliminated and the wheel turns freely by hand. 20 to 25 N⋅m Tightening torque (14.8 to 18.4 lbf⋅ft) (2 to 2.5 kgf⋅m) 5. Lower the machine. ZG327A-AU...
(RH and LH) fluid 22 Engine valve clearance Adjust ○ every 500Hr 23 Combustion chamber Clean After 1000Hr Check every 1 year 24 Fuel line Replace every 4 years Check every 1 year 25 Hydraulic hose Replace every 4 years (Continued) ZG327A-AU...
Page 48
Consult your local KUBOTA Dealer for this service. If you feel you are unable to make the following service correctly and safely, contact your local KUBOTA Dealer. When the battery is used for less than 100 hours per year, check the battery condition by reading the indicator annually.
PERIODIC SERVICE CHART LABEL PERIODIC SERVICE CHART LABEL This label is for your quick reference. The label shows the recommended services from daily to every 4 years, including fluid capacities, tire pressure and so on. For detail, refer to operator's manual. ZG327A-AU...
IMPORTANT : • To prevent serious damage to gears, bearings and oil seals, do not mix different kinds of oil. • To prevent serious damage to hydraulic systems, use only KUBOTA genuine fluid or its equivalent. Fuel: • Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline by volume) is approved for the engine. Other gasoline/ alcohol blends are not approved.
Page 51
We recommend the use of KUBOTA UDT or SUPER UDT fluid for optimum protection and performance. (Consult your local KUBOTA Dealer for further detail.) Do not mix different brands together.
1. Seat must be all the way back before raising. 2. Pull the latch lever on the seat panel frontward. (1) Latch lever (A) “RELEASE” (2) Hood (1) Latch lever (A) “PULL” 3. Raise the operator's seat to the “LOCK” position. (1) Hood ZG327A-AU...
IMPORTANT : • If the lever guide is out of alignment with the motion lever, move the lever guide to align it with the motion control lever. (1) Front axle frame (2) Nylon sling (3) Jack (4) Wood block ZG327A-AU...
Engine start system/OPC the rear wheels chocked. system. If either of these do not operate properly, contact your local KUBOTA Dealer Ref. Check item immediately. page Others Check the areas where pre-...
• Handle the fuel carefully. If the engine is • Do not mix oil with gasoline. running, do not fill the fuel tank. If the engine is • Do not use the fuel cap other than KUBOTA hot, let the engine cool down several minutes approved one.
3. Remove the dust and all foreign materials from the air intake area between the transmission and the engine dust cover. 4. Clean the engine shroud panel as necessary. For this, refer to EVERY 100 HOURS on page 60. ZG327A-AU...
• Area around engine must be clean to prevent the engine from overheating. • Under the exhaust muffler must be clear of debris after cleaning area around engine. (1) Bottom clean lever (A) “PUSH DOWN” (2) Oil cooler cover (B) “OPEN” ZG327A-AU...
(1) Mower universal joint IMPORTANT : • Do not use tires larger than specified. 7.1 Inflation pressure Even though the inflation pressure is factory-set to the prescribed level, it naturally drops slowly in the course ZG327A-AU...
4. Turn the key switch to the “START” position. 5. The engine must not crank. NOTE : • If the engine cranks in tests 1 through 4, consult your local KUBOTA Dealer to have the unit checked before operation. ZG327A-AU...
• If the engine remains running in Test 5, consult • If the engine keeps running in tests 1 through 2, your local KUBOTA Dealer to have the unit consult your local KUBOTA Dealer to have the checked before operation.
1. To change the used oil, remove the drain plug at the bottom of the engine and drain the oil completely. The used oil can be drained out more easily if the engine is warm. 2. Fill with the new oil up to the upper notch on the dipstick. ZG327A-AU...
- to get rid of large particles of dust and dirt. 3. Cleaning engine shroud panel If you feel you are unable to make the following service correctly and safely, contact your local KUBOTA Dealer. WARNING To avoid serious injury or death: •...
4. Cleaning engine oil cooler fins If you feel you are unable to make the following service correctly and safely, contact your local KUBOTA Dealer. This engine is equipped with an oil cooler. The style of the oil cooler is mounted on the blower housing.
• Be sure to stop the engine and remove the key when attempting to make the following checks and changes. • Never fail to check the fuel lines periodically. The fuel lines are subject to wear and aging. Fuel may leak out onto the running engine, causing a fire. ZG327A-AU...
• If water remains in the fuel filter bowl, clean or replace the fuel filter bowl as early as possible. (1) Pipe clamps (2) Fuel line (3) One way valve (4) Fuel filter ZG327A-AU...
7. Adjusting parking brake the element is excessively dirty, replace it. If you feel you are unable to make the following service correctly and safely, contact your local KUBOTA Dealer. WARNING To avoid serious injury or death: • Park the machine on a firm and level surface.
[LOWER] (lower 3. Loosen the lock nuts. limit level) mark. Otherwise, battery 4. Adjust the spring length to the recommendation. component parts may prematurely deteriorate, 5. Lock the nuts. which may shorten the battery's service life or cause an explosion. ZG327A-AU...
Keep open sparks and flames away from the battery at all times, especially when charging the battery. WARNING To avoid serious injury or death: • When charging battery, ensure that the vent caps are securely in place (if equipped). ZG327A-AU...
1. Move the throttle lever to the top position. inlet plug with gauge at the gear box and drain the oil completely into the oil pan. 2. After draining reinstall the drain plug. 3. Remove the oil level check plug. ZG327A-AU...
(2) Check plug this range. type must be used. Use only a genuine (3) Oil inlet plug with gauge (B) Oil level KUBOTA filter or its equivalent. (4) Gear box (5) Check plug port (6) Rectangle shape label (7) Octagon shape label...
Recommended spark plug NGK BPR6HS 7. Check the gap using a wire feeler gauge. Adjust the gap from 0.6 to 0.7 mm (0.024 to 0.028 in.) by carefully bending the ground electrode. (1) Transmission oil filter (HST) ZG327A-AU...
5. Cleaning engine shroud 4. Tighten the filter quickly until it contacts the mounting surface. Tighten filter by hand an Consult your local KUBOTA Dealer for this service. additional 1/2 turn only. EVERY 400 HOURS 5. After the new filter has been replaced, the transmission fluid level normally lowers a little.
1. Checking fuel lines KUBOTA genuine filter. If you feel you are unable to make the following service correctly and safely, contact your local KUBOTA Dealer. 3. Replacing fuel filter (See Checking the fuel filter on page 63.) Consult your local KUBOTA Dealer for this service.
(3) Magnifying glass 3. Checking intake air line If you feel you are unable to make the following service correctly and safely, contact your local KUBOTA Dealer. 1. Check to see that hoses and hose clamps are tight and not damaged.
EVERY 2 YEARS PERIODIC SERVICE EVERY 2 YEARS 1. Replacing one way valve Consult your local KUBOTA Dealer for this service. EVERY 4 YEARS 1. Replacing hydraulic hoses Consult your local KUBOTA Dealer for this service. 2. Replacing fuel lines Consult your local KUBOTA Dealer for this service.
• Tighten the 3 blade bolts to 103 to 118 N⋅m • Use the proper metric size box or socket (10.5 to 12.0 kgf⋅m, 76.0 to 87.0 lbf⋅ft) of wrench to tighten or loosen the blade mounting torque. bolt. ZG327A-AU...
6. To install a new belt, reverse the previous procedure. NOTE : • Tighten bracket bolts securely 77.6 to 90.2 N⋅m (8.0 to 9.2 kgf⋅m, 57.1 to 66.5 lbf⋅ft). ZG327A-AU...
• If you feel you are unable to make the following adjustments correctly and safely, contact your (1) Motion control rod local KUBOTA Dealer. (2) Lock nut Details regarding motion control lever alignment can be 9. Lengthen the rod by 1/2 turn and then tighten the found in a different section.
(1) Motion control lever (A) “NEUTRAL” position (hands (2) Guide plate off) 3. Maximum speed (forward) Consult your local KUBOTA Dealer for this service. 4. Motion control lever alignment WARNING To avoid serious injury or death: (1) Motion control lever...
5. Measure from outside the blade tip to the level surface with a short ruler or leveling gauge. Reference (1) Pin (H) 19 mm (0.75 in.) Height of the blade at the flat surface 76 mm (3 in.) ZG327A-AU...
7. Check that the left side blade has the same dimensions. difference between both measurements should be less than 6 mm (0.25 in.). The front side must be lower than the rear side. 8. If the front-to-rear adjustment is not within the given tolerance, adjustment is necessary. ZG327A-AU...
Page 85
IMPORTANT : • The difference between both measurements should be less than 6 mm (0.25 in.). The front side must be lower than the rear side. 9. Check the front-to-rear level. If it is not level, adjustment is necessary. ZG327A-AU...
(135.3 ± 11.7) (13.8 ± 1.2) NOTE : • Figure [7] on the top of the bolt indicates that the bolt is made of special material. • Before tightening, check the figure on top of the bolt. (1) Scale ZG327A-AU...
IMPORTANT : or carburetor for more than a month; otherwise • When washing the machine, be sure to stop the fuel might deteriorate to make it difficult to the engine. Allow sufficient time for the engine to cool before washing. ZG327A-AU...
1. Turn the carburetor fuel valve from the [RUN] (1) Carburetor fuel valve (OPEN) position to the [STOP] (CLOSE) position. (1) Carburetor fuel valve (A) [STOP] (CLOSE) (2) Drain port (B) [RUN] (OPEN) (3) Fuel filter bowl (C) [DRAIN] ZG327A-AU...
Page 90
4. Reinstall the packing and element, using caution not to contaminate them. IMPORTANT : • Mixing of dirt or foreign matter in the fuel might cause the malfunction of the engine. ZG327A-AU...
Replace fuel and the fuel filter. (Fuel quality is poor.) • Water or dirt in the fuel system. • Replace fuel and consult your KUBOTA Dealer. • Fuel hose or fuel filter clogged or dam- • Clean or replace fuel lines, and consult aged.
Page 92
Spark plug damaged. • Adjust the spark plug gap or replace it. • Faulty spark plug. • Replace the spark plug. • Carburetion problem. • Consult your KUBOTA Dealer. If you have any questions, contact your local KUBOTA Dealer. ZG327A-AU...
• Charging system • Contact your local trouble. KUBOTA Dealer. If you have any questions, contact your local KUBOTA Dealer. MACHINE TROUBLESHOOTING Symptom (if) Cause Remedy The machine operation is not • The hydrostatic transmission fluid is insuffi- • Fill with oil.
MOWER TROUBLESHOOTING Symptom (if) Cause Remedy Blade does not rotate. • PTO system is not normal: PTO system mal- • Consult your KUBOTA Dealer. functioning. • PTO system is normal: Broken mower belt. • Replace. Mower belt slipping. • Weaken tension spring.
Page 95
Slow down. • Debris wrapped around mower spindles. • Clean the mower. • Front of deck too low. • Adjust the mower deck. (See MOWER DECK LEVEL on page 80.) If you have any questions, contact your local KUBOTA Dealer. ZG327A-AU...
(1600 to 8200 ft) If you have lost the original carburetor kit, buy the 0 m kit. Altitude compensation kit part number: consult your local KUBOTA Dealer and specify your engine type and engine serial number. Consult your local KUBOTA Dealer for further information on the altitude compensation kit.
Need help?
Do you have a question about the ZG327A-AU and is the answer not in the manual?
Questions and answers
which motor oil is required for zg 327