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Kubota DF972-E2 - Page 80

Kubota DF972-E2
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S-10
WG972-E2, DF972-E2, WSM
GASOLINE / LPG ENGINE
LUBRICATING SYSTEM
W1013874
COOLING SYSTEM
W1013874
IGNITION SYSTEM
W1013874
Item Factory Specification Allowable Limit
Engine Oil Pressure At Idle Speed
At Rated Speed
More than 49 kPa
0.5 kgf/cm
2
7 psi
196 to 441 kPa
2.0 to 4.5 kgf/cm
2
28 to 64 psi
147 kPa
1.5 kgf/cm
2
21 psi
Inner Rotor to Outer Rotor Clearance 0.03 to 0.14 mm
0.0012 to 0.0055 in.
Outer Rotor to Pump Body Clearance 0.07 to 0.15 mm
0.0028 to 0.0059 in.
Inner Rotor to Cover Clearance 0.075 to 0.135 mm
0.00295 to 0.00531 in.
Item Factory Specification Allowable Limit
Fan Belt Tension 7.0 to 9.0 mm / 98 N
0.28 to 0.35 in. / 98 N
(10 kgf, 22 lbs)
Thermostat Valve Opening
Temper a ture
(At Beginning)
Valve Opening
Temper a ture
(Opened
Completely)
69.5 to 72.5 °C
157.1 to 162.5 °F
85 °C
185 °F
Radiator Cap Pressure Falling
Time
10 seconds or more
88 58 kPa
0.9 0.6 kgf/cm
2
13 9 psi
Radiator Weak Leakage
Test P ressure
No leak at specified
pressure
157 kPa
1.6 kgf/cm
2
23 psi
Item Factory Specification Allowable Limit
Spark Plug (NGK : BKR4E) Plug Gap 0.6 to 0.7 mm
0.024 to 0.028 in.
Resistance of Ignition Coil Primary (+) - (-)
Secondary Side
(Primary (+) - Plug
Cap)
1.87 to 2.53 Ω at 20 °C
15.4 to 20.6 kΩ at 20 °C
Pick-up Sensor Resistance 1.85 to 2.45 kΩ at 20 °C–
KiSC issued 01, 2006 A

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