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22
ASSEMBLY
(Refer to Figures 13 & 14)
IMPORTANT: Tighten all hardware to the torque
requirements specified in the torque chart.
To prevent bodily injury, do not operate backhoe
unless Lower Link Weldments (1, 2) are properly
installed and adjusted. Failure to do so may
result in backhoe being thrust upward, crushing
operator against cab or ROPS.
1. Use hoist to raise the backhoe mainframe so that
the boom pivot pin is aproximately 12” (662H), or 14”
(762H), off the ground.
2. Back tractor close to the backhoe. Connect tractor
lower link arms to lower link mounts at position “C”,
Figure 13, using two L-pins (3), two cotter pins (4), and
two wire form cotter pins (5) as shown in Figure 14.
NOTE: If tractor has a Category II hitch, install two
bushings (6) in lower link arms as shown in Figure 14.
3. Attach upper braces (7), Figure 14 to backhoe with
3/4 x 7-1/2” bolt (8), lockwasher (9), flat washers (10)
and nut (11). Do not tighten hardware at this time.
4. Install bushing (12) or bushing (13) in the hole of
the upper bar (14) that most closely matches the
diameter of the tractor upper link pin, as shown in
Figure 14. No bushing is necessary for Category II
tractors.
5. Secure upper bar (14) between upper braces (7)
using 3/4 x 4-1/2” bolt (9), flat washers (10), lock-
washer (9) and nut (11). Use hoist to raise or lower
backhoe slightly until a hole in the upper bar aligns
with a hole in the upper braces. See Figure 13.
6. Attach RH lower link weldment (1) and LH lower
link weldment (2) to backhoe mainframe using 3/4 x
2-1/4” bolt (15), flat wahser (10), lockwasher (9), and
nut (11). See Figure 14.
7. Align RH and LH link weldment (1, 2) with a hole in
the upper bar/brace assembly, as close to the tractor
as possible. Use 3/4 x 6” bolt(16), flat washer (10),
lockwasher (9), and nut (11). See Figure 14. You may
need to return to Step 6 and readjust upward or down-
ward the bolt connection.
8. Remove backhoe from the tractor.
9. Install connector plate (17) to RH and LH lower link
weldments (1, 2) using 1/2 x 1-3/4” bolt (18), lockwash-
er (19), and nut (20). See Figure 14.
10. Tighten all hardware at this time. Check your instal-
lation very carefully to be sure all members are correct-
ly installed and securely fastened.
10A. If using optional PTO Pump and Reservoir Kit
proceed to that section prior to remounting the back-
hoe onto the tractor.
11. Connect hoses from the backhoe control valve to
the tractor hydraulic system as described in “Hydraulic
Hook-Up” section, prior to remounting the backhoe
onto the tractor.
Figure 13
Backhoe Mainframe
Upper Brace
Link Weldment
Tractor Lower Link
Upper Bar
Tractor Upper
Link Weldment
C
WARNING
Boom Pivot Pin