Kubota RTV 900 Instruction manual

RTV900
WORKSHOP MANUAL
UTILITY VEHICLE
KiSC issued 04, 2006 A

9 NEW TRANSMISSION
The machine RTV900 serial numbers of the new transmission for Europe were changed into those
starting with “20001” for homologation versions, and into those starting with “60001” for
non-homologation version.
KiSC issued 04, 2006 A

TO THE READER
The WSM (No. 97897-15320) for RTV900 has already been issued.
The New Transmission of RTV900. Additional information has been prepared as the
WSM for 2006 Model based on the WSM for RTV900.
Please use it by attaching to the end of the WSM (No. 97897-15320) of RTV900.
April 2006
© KUBOTA Corporation 2006
KiSC issued 04, 2006 A

CONTENTS
TRAVELING SPEEDS............................................................................................. 1
G. GENERAL ...................................................................................................... G-1
[1] LUBRICANTS, FUEL AND COOLANT.................................................. G-1
[2] MAINTENANCE CHECK LIST................................................................ G-3
[3] CHECK AND MAINTENANCE................................................................ G-3
9. NEW TRANSMISSION ................................................................................9-M1
[1] MECHANISM........................................................................................... 9-M1
[2] SERVICING ..............................................................................................9-S1
KiSC issued 04, 2006 A

1
RTV900, WSM TRAVELING SPEEDS
TRAVELING SPEEDS
The company reserves the right to change the specifications without notice. W1035065
[EC Homologated Version]
The company reserves the right to change the specifications without notice. W1028608
Model General Purpose Worksite Recreational
Tire size (Rear) 25 ×10 – 12 Knobby 25 ×10 – 12 HDWS 25 ×11 – 12 ATV
Range gear shift lever km/h (mph)
Low 16 (10)
Medium 29 (18)
High 40 (25)
Reverse 20 (12)
Model Worksite Recreational
Tire size (Rear) 25 ×10 – 12 HDWS 25 ×11 – 12 ATV
Range gear shift lever km/h (mph)
Low 16 (10)
Medium 29 (18)
High 40 (25)
Reverse 20 (12)
KiSC issued 04, 2006 A

G-1
RTV900, WSM G GENERAL
G. GENERAL
[1] LUBRICANTS, FUEL AND COOLANT
*KUBOTA original transmission hydraulic fluid.
No. Place Capacity Lubricants, fuel and coolant
1 Fuel tank 28.0 L 7.4 U.S.gals
6.2 Imp.gals
No. 2-D diesel fuel
No. 1-D diesel fuel if temperature is below −10 °C
(14 °F)
2Cooling system with
recovery tank
4.0 L
4.2 U.S.qts
3.5 Imp.qts Fresh clean water with anti-freeze
3Engine crankcase
with oil filter
(Oil filter exchanged)
3.1 L
3.3 U.S.qts
2.7 Imp.qts
(Oil filter non-exchanged)
2.7 L
2.9 U.S.qts
2.4 Imp.qts
Engine oil : API Service CC, CD or CF
Below 0 °C (32 °F) : SAE10W, 10W-30 or 10W-40
0 to 25 °C (32 to 77 °F): SAE20, 10W-30 or
10W-40
Above 25 °C (77 °F): SAE30, 10W-30 or 10W-40
4 Transmission case 10.0 L 2.6 U.S.gals
2.2 Imp.gals KUBOTA UDT or SUPER UDT fluid*
5 Front axle case 0.6 L 0.63 U.S.qts
0.52 Imp.qts KUBOTA UDT or SUPER UDT fluid*
6 Knuckle case Ref. 0.15 L Ref. 0.16 U.S.qts
Ref. 0.13 Imp.qts KUBOTA UDT or SUPER UDT fluid*
7Brake fluid
(reservoir and lines)
0.4 L
0.42 U.S.qts
0.35 Imp.qts KUBOTA DOT3 GENUINE BRAKE FLUID
8
Hydraulic lift oil
(Hydraulic dumping
system model)
8.0 L
2.1 U.S.gals
1.8 Imp.gals
KUBOTA UDT or SUPER UDT fluid*
Hydraulic lift oil
(Hydraulic PTO
model)
7.0 L
1.8 U.S.gals
1.5 Imp.gals
9 Power steering oil 5.9 L 1.6 U.S.gals
1.3 Imp.gals
KiSC issued 04, 2006 A

G-2
RTV900, WSM G GENERAL
NOTE
■
• Engine Oil :
Oil used in the engine should have an American Petroleum Institute (API) service classification and Proper
SAE Engine Oil according to the ambient temperatures as shown above.
• Transmission oil :
The oil used to lubricate the transmission is also used as hydraulic fluid. To insure proper operation of
the hydraulic system and complete lubrication of the transmission, it is important that a multi-grade
transmission fluid be used in this system. We recommend the use of KUBOTA SUPER UDT fluid for
optimum protection and performance.
Do not mix different brands or grades.
• Brake fluid :
Always use KUBOTA DOT3 GENUINE BRAKE FLUID from a sealed container. If it is not available, you
should use only DOT3 fluid as a temporary replacement from a sealed container.
However, the use of any non-KUBOTA brake fluid can cause corrosion and decrease the lift of the system.
Have the brake system flushed and refilled with KUBOTA DOT3 GENUINE BRAKE FLUID as soon as
possible.
• Indicated capacity of water and oil are manufacturer's estimate.
• Lubricating Oil
With the emission control now in effect, the CF-4 and CG-4 lubricating oils have been developed for use
of a low-sulfur fuel on-road vehicle engines. When an off-road vehicle engine runs on a high-sulfur fuel,
it is advisable to employ the CF, CD or CE lubricating oil with a high total base number. If the CF-4 or CG-
4 lubricating oil is used with a high-sulfur fuel, change the lubricating oil at shorter intervals.
• Lubricating oil recommended when a low-sulfur or high-sulfur fuel is employed.
❍: Recommendable X : Not recommendable W1035555
Greasing
No. Place No. of greasing point Capacity Type of grease
10 VHT link 2 Until grease overflow
Multipurpose type
grease
NLGI-2 or NLGI-1
(GC-LB)
11 Battery terminal 2
Moderate amount
12 Cargo lift cylinder
pivot 2
13 Cargo bed pivot 2
14 Parking brake
linkage 4
15 Range gear shift
lever pivot 1
16 4WD lever pivot 1
17 VHT pressure
release 1
18 Accelerator wire – Engine oil
Fuel
Lubricating
oil class
Low sulfur
(0.5 % ≥)High sulfur Remarks
CF ❍❍TBN ≥10
CF-4 ❍X
CG-4 ❍X
KiSC issued 04, 2006 A

G-3
RTV900, WSM G GENERAL
[2] MAINTENANCE CHECK LIST
[3] CHECK AND MAINTENANCE
(1) Check Point of Every 50 Hours
Greasing
1. Apply a small amount of multi-purpose grease to the following
points every 50 hours. If you operated the machine in extremely
wet and muddy conditions, lubricate grease fittings more often.
W1043114
No.
Period
Item
Indication on hour meter Impor-
tant
Refer-
ence
page
50 100 150 200 250 300 350 400 450 500 550
2 Greasing Apply ✩✩✩✩✩✩✩✩✩✩✩ G-3
No.
Period
Item
Indication on hour meter After purchase Impor-
tant
Refer-
ence
page
600 650 700 750 800 1500 3000 1 year 2
years 4 years
2 Greasing Apply ✩✩✩✩✩ G-3
(1) Grease Fitting
(VHT Pressure Release)
KiSC issued 04, 2006 A

CONTENTS
MECHANISM
1. STRUCTURE.................................................................................................9-M1
2. OIL FLOW.....................................................................................................9-M3
3. BYPASS VALVE ...........................................................................................9-M4
4. CONTROL LINKAGE FOR BYPASS VALVE...........................................9-M12
KiSC issued 04, 2006 A

9-M1
RTV900, WSM NEW TRANSMISSION
1. STRUCTURE
(1) Input SHaft Section (2) Hydrostatic Transmission
Section (3) Range Shift Gear Section (4) Front Wheel Drive Section
KiSC issued 04, 2006 A