Assembly Instructions
#380-152A & #380-336A Installation Instructions Manual No. 380-153M
7/26/22
2
Valve Mount & Valve Assembly
Refer to Figure 1 & Figure 2 on page 3:
1. Remove hardware “A” used to mount the tractor’s
loader control valve assembly “B”.
2. Bolt the mount bracket (#2) under the tractor’s loader
control valve assembly “B”.
3. Reinstall hardware “A” removed in step 1 to secure
bracket as shown. Tighten hardware to the correct
torque.
4. Attach the valve (#10) to the valve mount bracket (#2)
using 1/4" x 7/8" bolts (#22).
5. Attach 35" long hose (#13) to “P” port in valve (#10)
using adapter (#23). Tighten adapter to port “P” and
hydraulic hose to the adapter.
6. Attach 35" long hose with elbow (#12) to “T” port
using adapter (#23). Tighten adapter to port “T” and
hydraulic hose to the adapter.
7.
Install adapter (#25A) and black dust cap (#27) to
“A” port in valve. Attach quick coupler (#11A) to
adapter (#25A).
8. Install adapter (#25B) and green dust cap (#28) to
“B” port. Attach quick coupler (#11B) to
adapter (#25B).
9. Route hydraulic hoses (#12 & #13) under the tractor’s
platform and back towards the rear of the tractor.
B3300/LA504 Third Function Valve Kit for Kubota Cab Tractor
Figure 1
U
D
B
F
R
L
37118
Attaches to the positive
(+) post on the tractor
battery.
Shown with
pioneer-faced
couplers
73040
Port A
Port B
Port P
Port T
10
Valve port identification
Assembly Instructions