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Kubota G1900 Maintenance
The
Kubota G1900 garden tractor was manufactured from 1989 to 2000. The Kubota G1900
is powered by Kubota D722 vertical thee-cylinder indirect injection
liquid-cooled diesel engine with a rated power of 18.8 Hp (14 kW) at 3800 rpm.
The engine has a Bosch MD mini fuel injection pump and forced
lubrication by trochoid pump. The tractor is equipped with a hydrostatic
transmission with travel speed control. The maximum travel speed
(forward and reverse): 8.1 mph (13 km/h) / 3.7 (6 km/h).
The garden tractor was equipped with a hydrostatic steering system with
2-wheel steer (G1900) or 4-wheel steer (G1900S), 16x6.50-8 front tires,
and 23x8.50-12 rear tires. The wheelbase is 51" (1290 mm). The Kubota
G1900 is compatible with the following attachments: a 48" mid-mount
3-blade mower deck with cutting height of 1.4-3.5" (35-80 mm), 54", 60"
mid-mount 3-blade mower decks with cutting height of 1.5-4.0" (38-102
mm), and 48" front blade.
| Engine oil capacity, qts (L) |
3.4 (3.2) |
| Engine coolant capacity, qts (L) |
3.3 (3.1) |
| Transmission fluid capacity, qts (L) |
6.1 (5.8) |
| Fuel tank capacity, gal (L) |
5.0 (18.9) |
| Recommended Oil and Fluid |
| Engine oil type |
SAE 30, SAE 10W-30. API Service category CC, CD |
| Engine coolant type |
Kubota Antifreeze/Coolant |
| Transmission fluid type |
Kubota UDT Fluid |
| Check fuel level |
Every 10 hours |
| Check engine oil level |
Every 10 hours |
| Check engine coolant |
Every 10 hours |
| Check and tighten loose hardware |
Every 50 hours |
| Check and adjust fan belt |
Every 50 hours |
| Check and adjust front PTO belt |
Every 50 hours |
| Check tire pressure and brakes |
Every 50 hours |
| Clean engine air filter element |
Every 50 hours |
| Check and clean battery terminals |
Every 100 hours |
| Clean radiator fins |
Every 100 hours |
| Lubricate front wheels |
Every 100 hours |
| Change engine oil |
Every 100 hours |
| Check engine fuel filter |
Every 100 hours |
| Change mower gear box oil |
Every 150 hours |
| Replace engine oil filter |
Every 200 hours |
| Change transmission fluid |
Every 300 hours |
| Replace HST transmission filter |
Every 300 hours |
| Clean transmission strainer |
Every 300 hours |
| Charge battery |
Every 300 hours |
| Check engine idle speeds |
Every 300 hours |
| Replace engine fuel filter |
Every 500 hours |
| Check and adjust valve clearance |
Every 500 hours |
| Replace air filter element |
Every 600 hours |
| Flush cooling system and add new coolant |
Every 1000 hours |
| Engine oil filter part number |
HH150-32430, HH152-32432 |
| Engine fuel filter part number |
12581-43012 (Element) |
| Engine air filter part number |
15852-11082 (Element) |
| Hydraulic suction filter part number |
66021-36390 |
| Hydrostatic transmission filter part number |
HH660-36060 |
| Mower PTO belt part number |
H6610-25000 |
| Drive belt part number |
15881-97010 |
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| Lawn and Garden Tractors Technical Specs |
