Checking Fan Belt; Check Points Of Initial 50 Hours; Changing Engine Oil - Kubota D1803-CR-E4 Workshop Manual

CHECK AND MAINTENANCE
1.Daily check points

1.4 Checking fan belt

1. Check that the fan belt is worn out and sunk in the
pulley groove or not.
• If it is, replace it.
(A) OK
2. Push the belt halfway between the fan drive pulley
and alternator pulley at a specified force to measure
the deflection (1).
Service specifi-
Deflection (1)
cation
(1) Deflection
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
(B) Wear
10.0 to 12.0 mm
0.394 to 0.472 in. in.
(Under load of 98 N
(10 kgf, 22.1 lbf))
NOTE
• If the measurement is out of the service
specifications,
mounting screws and adjust its position.
2. Check points of initial 50
hours

2.1 Changing engine oil

CAUTION
• Make sure that you stop the engine before you
change the engine oil.
IMPORTANT
• When you use an oil of different brand or
viscosity from the previous, drain the remaining
oil.
• Do not mix 2 different types of oil.
• Engine oil must have the properties of API
classification CJ-4. Use the correct SAE Engine
Oil by reference to the ambient temperature.
Above 25 ℃ (77 ℉)
0 ℃ to 25 ℃ (32 ℉ to 77 ℉)
Below 0 ℃ (32 ℉)
1. Start and warm-up the engine for approximately 5
minutes.
2. Put an oil pan below the engine.
3. Remove the drain plug (1) at the bottom of the
engine and drain the oil fully.
(1) Drain plug
4. Tighten the drain plug (1).
Tightening tor-
Drain plug (1)
que
3. MAINTENANCE
loosen the alternator
SAE 30 or SAE 10W-30, SAE
15W-40
SAE 20 or SAE 10W-30, SAE
15W-40
SAE10W or SAE 10W-30, SAE
15W-40
32.4 to 37.2 N⋅m
3.31 to 3.79 kgf⋅m
23.9 to 27.4 lbf⋅ft
3-7
KiSC issued 12, 2018 A