Section 1: Assembly & Set-Up
2/5/19
11
Hydraulic Hose Hook-up
Figure 1-11
Hydraulic Hose Hook-up
1.
Route grapple hydraulic hoses (#20 & #21) straight
through Hose Holder Bracket (#3).
2. Clean quick disconnect couplers of dirt and grease.
3. Connect hydraulic hose (#20), attached to the
grapple’s lower tee, to quick disconnect coupler “A”.
4. Connect hydraulic hose (#21), attached to the
grapple’s upper tee, to quick disconnect coupler “B”.
5. Make sure quick disconnect couplers are fully
engaged. If they are not, check the following:
a. Make sure couplers are same size and type.
b. Make sure hydraulic system pressure has been
released.
6. Extend and retract hydraulic cylinder with the push-
button joystick. Switch hydraulic hoses (#20 & #21) at
couplers (“A” & “B”) if hydraulic cylinders operate
opposite of the direction intended.
7.
For additional help, refer to Hydraulic Hook-Up in
your tractor Operator’s Manual.
8. Check tractor hydraulic fluid level. If low, add
recommended hydraulic fluid. Refer to your tractor’s
Operator’s Manual for recommended hydraulic fluid
and procedure for checking hydraulic fluid level.
Unhook Without Kubota Quick Hitch
WARNING
!
To avoid serious injury or death:
Store attachment on solid, level ground with hydraulic
cylinders fully extended, upper jaw fully closed, and parking
stands locked in the rotated down position. The attachment
can tip over if stored improperly.
3
35839
20
Upper Tee
A
21
B
21
Lower Tee
20
IMPORTANT:
Make sure coupler fittings on the
hydraulic hoses and power machine are clean
before connecting them together.
Refer to Figure 1-9 on page 10:
1.
See
grapple for long periods or end of season.
2. Select a solid level surface to park grapple. Lower
grapple down until about 3 or 4 feet off the ground.
3. Place transmission in park, shut tractor engine off,
and remove switch key.
4.
Rotate parking stands (#6) down to park position until
locked in place. See
on page 6 for
detailed instructions.
5.
Refer to
Disconnect grapple hydraulic
hoses from bulk head couplings “A” & “B” and remove
hoses from hose holder (#3). Store hoses on grapple.
6.
Return to the tractor, start engine, and lower grapple
until resting on its lower jaw and parking stands.
7.
Place transmission in park, shut tractor engine off,
remove switch key, and dismount tractor.
8. Pull hairpin cotters (#5) and remove lower hitch
pins (#1) from grapple.
9. Remove nut (#4), bolt (#3), and hitch pin (#2).
10. Slide grapple froward about 6" and replace hitch
pins (#1 & #2) in the grapple.
11. Secure lower hitch pins with hairpin cotters (#5).
12. Secure center hitch pin with bolt (#3) and lock
nut (#4). Screw locknut on only 3 or 4 full turns.
Check Equipment Clearances
It is important to check clearance between tractor front
loader and grapple before putting grapple into service.
Make sure hoses are long enough and won’t become
pinched or entangled in the equipment. Also, make sure
the grapple does not come in contact with tractor loader.
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 grapple 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 grapple hydraulic cylinders to pivot
upper jaw fully down.
5. Fully extend and retract hydraulic cylinder on end of
loader while watching for interferences between
loader and grapple. Stop movement if grapple or
hoses come near the loader.
6. Fully retract grapple cylinders to pivot upper jaw fully
up and repeat step 5.
7.
Raise loader arms fully up and repeat steps 4-6.
8. Lower grapple to ground & close upper grapple jaw.
9. Recheck tractor hydraulic fluid level before putting
grapple into operation. Refer to your tractor’s
Operator’s Manual for recommended hydraulic fluid
and procedure for checking hydraulic fluid level.
