Kubota ,RCK60B-23BX, Руководство по ремонту

Страница: 222 / 436

1. Remove the plug (R 1/4) (1) from the front cover,
then install the adaptor (R 1/4) and pressure gauge.
(1) Plug
2. Set the range gear shift lever to neutral position.
3. Start the engine and operate it at the maximum
speed.
4. Read the pressure gauge to measure the charge
relief pressure.
5. If the measurement is not within the factory
specifications, check the charge relief valve and
related hydraulic components.
Charge relief pres-
sure Factory specifi-
cation
0.55 to 0.75 MPa
5.6 to 7.7 kgf/cm
2
80 to 100 psi
Oil temperature Specification
50
℃
122 ℉
(When reassembling)
NOTE
• When reinstalling the hexagon socket head
plug, apply liquid lock (Three Bond 1324 or its
equivalent) to the plug.
Tightening tor-
que
Charge relief valve
checking plug (R
1/4) 30 to 44 N
⋅
m
3.0 to 4.5 kgf ⋅ m
22 to 32 lbf
⋅
ft
4.5 Checking high relief pressure
(Forward)
CAUTION
• When checking, park the tractor on flat ground,
and apply the parking brake.
IMPORTANT
• Measure quickly the high relief pressure within
about 10 seconds.
(1) P1 port (Reverse) (2) P2 port (Forward)
1. Jack up the machine.
2. Remove the hexagon socket head plug (R 1/4) from
P2 (2), then install the adapter, cable, and pressure
gauge.
3. Start the engine and operate it at maximum speed.
4. Set the range gear shift lever to hi position.
5. Depress the speed control pedal to forward, and
read the pressure gauge to measure the high relief
pressure.
6. If the measurement is not the same as factory
specification, check the high pressure relief valve
and related hydraulic components.
High relief pres-
sure (Forward) (Oil
temperature at
50
℃
, 122
℉
)
Factory specifi-
cation
20.1 to 21.1 MPa
205 to 215 kgf/cm
2
2920 to 3060 psi
(When reassembling)
NOTE
• When reinstalling the hexagon socket head
plug, apply liquid lock (Three Bond 1324 or its
equivalent) to the plug.
Tightening tor-
que
Hexagon socket
head plug (P1 and
P2 port) 30 to 44 N ⋅ m
3.0 to 4.5 kgf
⋅
m
22 to 32 lbf ⋅ ft
4. TRANSAXLE
SERVICING
4. Checking and adjusting
4-32
BX1880,BX2380,BX2680,RCK60B-23BX,RCK54-23BX,RCK48-18BX,RCK60D-26BX,RCK54D-26BX
KiSC issued 03, 2019 A