Operator's Manual
The 4Ćcycle, 3 cylinder, overhead valve
Mitsubishi diesel engine, Model K3D, is water cooled
and delivers 24.99 HP (18.6 kw) @ 3600 rpm. Cylinder
bore is 2Ć7/8 in. (73 mm), stroke is 3Ć1/16 in. (78 mm)
and displacement is 59.7 cu. in. (979 cc). Compression
ratio is 23:1. Crankcase oil capacity w/filter is 3.7 qt.
(3.5 L). Filter is full flow, replaceable, screw-on type.
Mechanical centrifugal type governor limits maximum
no-load engine speed to 3200 50 rpm. Idle speed is
1500 50 rpm. Glow plug is installed in each cylinder
for starting assist.
" " Heavy duty, remote mounted.
%" Volume equal to approximately six times
engine displacement for excellent silencing. Spark
arrestor incorporated with muffler.
)#$ Radiator has tube and fin
construction with hydraulic oil cooler in lower tank.
Capacity of cooling system is approximately 6 quarts
(5.7 L) of a 50% mixture of permanent, ethylene glycol
anti-freeze and water. Radiator is equipped with a 15
psi (103 kPa) pressure cap and engine has a 170_ F
(76.5_C) thermostat.
% )#$ Fuel tank holds approximately 6Ć1/2 gal.
(25 L) of No. 1 or 2 automotive type diesel fuel oil, per
SAE J313c spec. 12 volt, electric (transistor type), fuel
pump w/replaceable filter mounted on frame. Fuel
filter/water separator with replaceable cartridge is
mounted on frame.
" $ ( The heavy Duty Dana GT 20 axle has
reduction of 20.9:1. Axle has automotive type
differential, bevel gear pinion and ring gear with spur
gear reduction from transmission. All axle components
are mounted in tapered roller bearings.
" ( The rear axle is mechanically driven from
the front axle by a universal shaft. Axle has a
bidirectional - overrunning clutch in rear driveshaft.
When lubricating rear axle, use SAE 80WĆ90 gear lube,
API GLĆ5. Lubricant capacity is approximately 1.9 qt.
(1.8 L).
"### Sundstrand in-line hydrostatic
transmission is mounted directly to the front axle and
driven by flexible drive couplings. Operating pressure
is 500 to 5200 psi (3400 to 36,000 kPa) and normal
charge pressure is 70 to 150 psi (450 to 1000 kPa).
Implement relief valve setting is 700 to 900 psi (4800 to
6200 kPa.). Relief valve in traction loop set at 5200 psi
(36,000 kPa) (forward only). Displacement is 0.913
cubic inch (15 cm#) per revolution, and transmission is
controlled by foot-actuated pedal. Front axle is the
hydraulic fluid reservoir, and its capacity is 5 quarts (4.7
L) of engine oil (see viscosity chart on page 18). The 25
micron hydraulic oil filter is a screw on replaceable
type. For replacement filters, order Toro part number
23-9740.
" % " Clearance at rear axle is 4Ć1/2"
(11 cm).
" % ! Speed is infinitely variable from 0 to
9.5 mph (0 to 15 km/hr) forward or reverse.
"# Two rear tires are 18 x 6.50Ć8 extra traction tread,
4Ćply rating rib, on demountable, drop center wheels.
The two front tires are 23 x 8.50Ć12, extra traction tread,
4Ćply rating, on demountable, drop center wheels.
Recommended air pressure for both the front and rear
tires is 21 psi (145 kPa).
"# Brakes controlled by 3 pedals. Two are for
steering assist. Are individually controlled by left foot.
Third pedal operates both brakes; is controlled by
either foot. Parking brake latch provided for third pedal.
Pedals are connected to brakes by multi-stranded
cable and conduit.
$" The 15 inch (38 cm) steering wheel is
mounted on steering valve consisting of a control valve
and metering section which regulates pressure and
meters flow to the steering cylinder. Steering wheel
adjustable fore and aft for operator comfort.
" Frame is welded, formed (11 ga.) steel,
reinforced with square and rectangular tubing.
$" '$# PTO SwitchĊShuts engine off
when PTO is engaged with no operator in seat.
Traction SwitchĊShuts engine off when traction pedal
is engaged with no operator in seat. Seat
SwitchĊShuts engine off if operator leaves seat
without disengaging PTO and/or traction pedal.
Engine will not start if PTO or traction pedal is engaged.
$" 12 volt battery has 630 amp, cold cranking
performance at 0_ F (-18_C), 12 volt negative ground,
35 amp. alternator w/regulator for charging battery.
Electric solenoid on injection pump operates shut-off
device to stop fuel flow; thereby stopping engine. A 40
amp. manual reset circuit breaker protects electrical
wiring.
#$"%$ $" Ammeter,
hour-meter, fuel gauge, ignition switch, coolant
temperature switch gauge to prevent overheating, oil
pressure warning light, glow plug switch and glow plug
indicator and throttle control are on instrument panel.
hand operated PTO lever is located to right of the seat.
Foot pedal control for transmission operation at right of
steering column.
&" " $$ )#$ 2ĆPost ROPS
is standard.
$" )" 2.00" bore x 4.81" stroke high
quality cylinder.
The tie rod is a 1.0" o.d. steel rod with
greaseable ball joint on both ends.