Check Points Of Every 2 Years; Replacing Intake Air Line; Replacing Battery; Replacing Radiator Hoses And Clamp Bands - Kubota WSM 05-E4B Series Workshop Manual

CHECK AND MAINTENANCE
13. Check points of every 2 years
(1) Injection pump pressure test-
er
(2) Injection nozzle
5. Operate the starter to increase the pressure.
6. Stop the starter when the fuel jets from the injection
nozzle. After that, turn the flywheel by the hand and
raise the pressure
2
(140 kgf/cm , 1991 psi).
7. Now turn the flywheel back about half a turn (to
keep the plunger free). Keep the flywheel at this
position and clock the time taken for the pressure to
drop from 13.73 to 12.75 MPa (from 140 to
2
130 kgf/cm , from 1991 to 1849 psi).
8. Measure the time needed to decrease the pressure
from 13.73 to 12.75 MPa (from 140 to 130 kgf/cm
from 1991 to 1849 psi).
9. If the measurement is less than service limit,
replace the pump with new one or repair with a
Kubota-authorized pump service shop.
Service specifi-
cation
Fuel tightness of
delivery valve
Service limit
13. Check points of every 2
years

13.1 Replacing intake air line

NOTE
• To prevent serious damage to the engine, keep
out any dust inside the intake air line.
1. Loosen the clamp (2).
2. Remove the intake air hose (1) and clamp (2).
3. Replace with the new intake air hose (1) and new
clamp (2).
4. Tighten the clamp (2).
05-E4B SERIES,05-E4BG SERIES
(3) Protection cover for jetted
fuel
to approx. 13.73 MPa
2
10 seconds
13.73 to 12.75 MPa
2
140.0 to 130.0 kgf/cm
1991 to 1849 psi
5 seconds
13.73 to 12.75 MPa
2
140.0 to 130.0 kgf/cm
1991 to 1849 psi
(1) Intake air hose

13.2 Replacing battery

CAUTION
• When the battery is being activated, hydrogen
and oxygen gases in the battery are extremely
explosive. Keep open sparks and flames away
from the battery at all times, especially when
charging the battery.
• When charging battery, remove battery vent
plugs.
• When disconnecting the cable from the battery,
,
start with the negative terminal first. When
connecting the cable to the battery, start with
the positive terminal first.
• Never check battery charge by placing a metal
object across the posts.
1. Disconnect the negative terminal and positive
terminal.
2. Remove the battery holder.
3. Remove the used battery.
4. Replace with the new battery.
5. Tighten the battery holder.
6. Connect the positive terminal.
7. Connect the negative terminal.
13.3 Replacing radiator hoses and
clamp bands
CAUTION
• Do not remove the radiator cap when the engine
is hot. Then loosen cap slightly to the stop to
relieve any excess pressure before removing
cap completely.
1. Drain the coolant.
2. Loosen the clamp bands.
3. Remove the upper hose (1) and lower hose (2).
3. MAINTENANCE
(2) Clamp
3-19
KiSC issued 03, 2023 A