
GR1600EC2
WORKSHOP MANUAL
KiSC issued 07, 2006 A

TO THE READER
This Workshop Manual has been prepared to provide servicing personnel with
information on the mechanism, service and maintenance of KUBOTA GR1600EC2. It is
divided into three parts, “General”, “Mechanism” and “Servicing”.
■ General
Information on the tractor identification, the general precautions, maintenance check
list, check and maintenance and special tools are described.
■ Mechanism
Information on the construction and function are included. This part should be
understood before proceeding with troubleshooting, disassembling and servicing.
■ Servicing
Information on the troubleshooting, servicing specification lists, tightening torque,
checking and adjusting, disassembling and assembling, and servicing which cover
procedures, precautions, factory specifications and allowable limits.
All information illustrations and specifications contained in this manual are based on
the latest product information available at the time of publication.
The right is reserved to make changes in all information at any time without notice.
Due to covering many models of this manual, information or picture being used, have
not been specified as one model.
July 2006
© KUBOTA Corporation 2006
KiSC issued 07, 2006 A

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GR1600EC2, WSM SAFETY INSTRUCTIONS
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 “DO NOT OPERATE” tag in operator
station.
SAFETY 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.
It is essential that you read the instructions and safety regulations before you attempt to repair or use
this unit.
DANGER : Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
WARNING : Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
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.
■ NOTE : Gives helpful information.
KiSC issued 07, 2006 A

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GR1600EC2, WSM SAFETY INSTRUCTIONS
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.
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.
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.
KiSC issued 07, 2006 A

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GR1600EC2, 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.
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.
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.
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.
KiSC issued 07, 2006 A

4
GR1600EC2, WSM SAFETY INSTRUCTIONS
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.
SAFETY DECALS
KiSC issued 07, 2006 A

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GR1600EC2, WSM SAFETY INSTRUCTIONS
KiSC issued 07, 2006 A

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GR1600EC2, WSM SAFETY INSTRUCTIONS
KiSC issued 07, 2006 A

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GR1600EC2, WSM SPECIFICATIONS
SPECIFICATIONS
NOTE: *Manufacture's estimate
The company reserves the right to change the specifications without notice.
W1028280
Model GR1600EC2
Engine
Maker KUBOTA
Model Z482-E2-GX
Type Indirect injection. Vertical, water-cooled, 4-cycle diesel
Number of cylinders 2
Bore and stroke 67 x 68 mm (2.64 x 2.68 in.)
Total displacement 479 cm
3
(29.9 cu.in.)
Engine gross power (DIN) 10.0 kW (13.4 HP)
Rated revolution 53.3 r/s [3200 min
-1
(rpm)]
Battery 51R (12 V, 450CCA)
Starting system Cell starter (with glow plug)
Lubrication system Forced lubrication by trochoidal pump
Cooling system Pressurized radiator, forced circulation with water pump
Fuel
Diesel fuel No.2-D [above -10 °C (14 °F)],
Diesel fuel No.1-D [below -10 °C (14 °F)]
Capacities
Fuel tank 18 L (4.8 U.S.gals, 4.0 lmp.gals)
Engine crankcase (with filter) 1.2 L (1.27 U.S.qts., 1.06 lmp.qts.)
Engine coolant (with recovery tank) 2.15 L (2.27 U.S.qts., 1.89 lmp.qts.)
Transmission case 2.7 L (0.71 U.S.gals., 0.59 lmp.gals.)
Dimensions
Overall length (with grass catcher) 2710 mm (107 in.)
Overall width 1110 mm (43.7 in.)
Overall height 1190 mm (46.9 in.)
Wheel base 1280 mm (50.4 in.)
Tread
Front 750 mm (29.5 in.)
Rear 800 mm (31.5 in.)
Weight (without mower and grass catcher) 310 kg (684 lbs)
Traveling system
Tires
Front 15 x 6.00 - 6, 4PR
Rear 20 x 10.00 - 8, 4PR
Steering Manual (Sector gear type)
Transmission Hydrostatic transmission
Brake Internal expanding brake
Differential Bevel gear
Traveling speed
Forward 0.0 to 10.0 km/h (0.0 to 6.2 mph)
Reverse 0.0 to 5.0 km/h (0.0 to 3.1 mph)
PTO system
Clutch Mechanical wet multi discs
PTO brake Wet multi discs
KiSC issued 07, 2006 A

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GR1600EC2, WSM SPECIFICATIONS
W1030594
NOTE: *Manufacture's estimate
The company reserves the right to change the specifications without notice.
W1031306
Model RCK42GREC2
Mower
Cutting width 1067 mm (42.0 in.)
Cutting height 25 to 102 mm (1 to 4 in.)
Adjustment of cutting height Dual gauge
Mounting method Quick joint, Parallel linkage
Weight (Approx.) 75 kg (165 lbs)
Dimensions Total length 965 mm (38.0 in.)
Total width 1110 mm (43.7 in.)
Total height 295 mm (11.6 in.)
Discharge direction Rear
Gear box oil 0.33 L (0.35 U.S.qts, 0.29 Imp.qts)
Model GCK370GREC2
Grass catcher
Container capacity 370 L (97.7 U.S.gals, 81.4 Imp.gals)
Weight (Approx.) 40 kg (88.2 lbs)
KiSC issued 07, 2006 A
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Description
Kubota 1600 and 1600DT parts book is a comprehensive manual consisting of 107 pages. It provides fully illustrated parts lists with exploded views, making it a valuable resource for assisting in the disassembly and assembly processes. This manual is beneficial for both professional mechanics and DIY enthusiasts.