Kubota B1830 Workshop Manual page 270

B1830,B2230,B2530,B3030, WSM
Center Section 1
1. Remove the center section mounting hex. bolts (2).
2. Separate the HST housing (3) from the center section (1).
(When reassembling)
• Use a new gasket.
• Install the poppet to the center section (1). Don't drop the spring
(5).
• Check the knock pin.
• Hold the gasket with the hex. bolts (2) not to drop the gasket (4).
Center section mounting
Tightening torque hex. bolt for aluminum
(M10)
(1) Center Section
(2) Hex. Bolt
(3) HST Housing
(4) Gasket
3-S46
TRANSMISSION
39.3 to 44.1 N·m
4.0 to 4.5 kgf·m
29.0 to 32.5 lbf·ft
(5) Spring
(6) Poppet
(7) Knock Pin
9Y1210003TRS0058US0
KiSC issued 05, 2012 A