INTRODUCTION
General specification - Tractors with Hydrostatic Transmission
(HST)
Model
Boomer 20 -
Hydrostatic
Model
Boomer 25 -
Hydrostatic
ENGINE
Type
Diesel
Diesel
Model
S3L
S3L2
Engine Gross Horsepower
17 kW
(
23 Hp
)
20 kW
(
27 Hp
)
Cylinders
4
4
Bore
78 mm
(
3.07 in
)
78 mm
(
3.07 in
)
Stroke
78.5 mm
(
3.09 in
)
92 mm
(
3.62 in
)
Displacement
1.125 l
(
69 in³
)
1.318 l
(
80 in³
)
Compression Ratio
22.0:1
20.0:1
Firing Order
1-3-2
1-3-2
Low Idle Speed
970±30 RPM
970±30 RPM
Maximum Speed:
High Idle
29000±20 RPM
2900±20 RPM
Rated
2700 RPM
2700 RPM
Valve Clearance (Cold)
Intake
0.020 - 0.050 mm
(
0.0008 - 0.0020 in
)
0.020 - 0.050 mm
(
0.0008 - 0.0020 in
)
Exhaust
0.050 - 0.085 mm
(
0.0020 - 0.0033 in
)
0.050 - 0.085 mm
(
0.0020 - 0.0033 in
)
CAPACITIES
Fuel Tank
25 l
(
6.6 US gal
)
25 l
(
6.6 US gal
)
Cooling System
3.8 l
(
1.0 US gal
)
3.8 l
(
1.0 US gal
)
Engine Crankcase:
With Filter
4 l
(
1.10 US gal
)
4 l
(
1.10 US gal
)
Rear Axle & Transmission (Includes
Hydraulics)
HST
20 l
(
5.28 US gal
)
20 l
(
5.28 US gal
)
Front Axle
3 l
(
1 US gal
)
3 l
(
1 US gal
)
COOLING SYSTEM
Type
Pressurized Liquid with Recirculating
Bypass
Pressurized Liquid with Recirculating
Bypass
Water Pump:
Type
Centrifugal
Centrifugal
Drive
V-Belt
V-Belt
Belt Deflection
10 - 12 mm
(
0.39 - 0.47 in
) when
10 kg
(
22 lb
) pressure is applied
midway between belt pulleys
10 - 12 mm
(
0.39 - 0.47 in
) when
10 kg
(
22 lb
) pressure is applied
midway between belt pulleys
Fan Diameter
356 mm
(
14 in
)
356 mm
(
14 in
)
Thermostat:
Start to Open
76.5 °C
(
170 °F
)
76.5 °C
(
170 °F
)
Fully Open
90 °C
(
194 °F
)
90 °C
(
194 °F
)
Radiator Cap
90 kPa
(
13 psi
)
90 kPa
(
13 psi
)
48017684 02/06/2016
19
Summary of Contents for Boomer 20
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