Section 1: Assembly & Set-up
CB0654 4-in-1 Combination Bucket 381-218M
1/3/23
11
Refer to Figure 1-2:
1. Using the 90 degree fitting side of hoses, install
longer hose (#4) to bottom port of cylinder (#1) and
shorter hose (#5) to top port of cylinder.
2. Orient hoses for best hook-up and clearance to the
couplers on the bulkhead and tighten to cylinder.
3. Install couplers (#6 & #7) to hoses (#4 & #5) and
tighten.
a. After operation the couplers can be reversed to
allow controls to operate the opposite way.
l
Refer to Figure 1-1 on page 10
4. Clean all dirt from quick connect couplers shown in
Figure 1-1 and the couplers on the 3rd function
bulkhead.
5. Connect the quick connect couplers on the bucket to
the quick connect couplers on the bulkhead. Make
sure quick connect couplers have fully engaged. If
they have not, check the following:
a. Make sure couplers are same size and type.
b. Make sure hydraulic system pressure has been
released.
Check Equipment Clearances
Refer to Figure 1-2:
It is important to check clearance between tractor and
bucket before putting the bucket into service. Make sure
hoses are long enough and won’t become pinched or
entangled in the equipment. Also, make sure the bucket
does not come in contact with the tractor loader by
carefully going through its full range of motions.
1. Visually inspect hydraulic hoses for possible pinch
points and shortness. Make hose adjustments before
operating hydraulics to check clearances.
2. Start tractor and raise bucket approximately 12" off
the ground.
3. If necessary, have someone stand nearby that can
motion for the operator to stop if a problem develops
while completing steps 4-7 below.
4. Fully extend bucket hydraulic cylinder (#1) to pivot
jaw (#2) fully down.
5. Raise loader arms just enough for the bucket to clear
the ground while extending and retracting tilt cylinder
on the end of the loader.
Make sure coupler fittings on the
hydraulic hoses and power machine are clean
before connecting them together.
NOTE:
If the loader is not supplied with Kubota’s 3rd
Function valve, an optional Land Pride kit is
available. See “
Accessories
”
for correct kit number.
6. Fully extend and retract tilt cylinder on the end of the
loader while watching for interferences between
loader, bucket, and hydraulic hoses. Stop movement
if hoses interfere with the loader or bucket.
7.
Fully retract bucket cylinder to pivot the jaw fully up
and repeat steps 5 & 6.
8. Raise loader arms fully up and repeat steps 4 & 6.
9. Lower bucket to the ground & close the jaw.
Hook-up Hoses/Purge Hydraulic System
Figure 1-2
Purge Hydraulic System
Refer to Figure 1-2:
1. With bucket raised off the ground about 12", cycle
hydraulic cylinder (#1) several times from fully
extended to fully retracted.
2. If the hydraulic cylinder operates unevenly after
cycling, then purge the system as follows:
a. Shut tractor down according to
b. Loosen hydraulic hose fitting (#3) at the rod end of
cylinder (#1).
c. Return to the tractor seat and slowly retract
cylinder (#1) to purge any trapped air from the
system.
d. Shut tractor down properly before dismounting.
e. Once all trapped air is removed from the system,
tighten fitting (#3).
78350
IMPORTANT:
Purge hydraulic cylinders and/or
hoses of air before putting the equipment into