New Holland 499 Operator's Manual page 15

HITCHING TO TRACTOR
(S/N 520721 AND BELOW)
Tractor requirements are the same as shown in
"Tractor Drawbar Dimensions" on page 1-2, except
for an additional 21/32" hole, 1, that is required in the
drawbar for bolt, 1, Figure 7.
NOTE: With the tractor on a level hard surface,
measure from the ground to the top of the drawbar.
If the drawbar is less that 559 mm (22") above the
ground, install the extension on top of the drawbar. If
the drawbar is 559 mm (22") or higher, install the
extension on the bottom of the drawbar.
Attach the drawbar extension on the mower-condi-
tioner tongue to the tractor drawbar as shown.
IMPORTANT: Bolt the drawbar extension solidly to
the tractor drawbar. Pivoting the tongue will put
heavy side loads on the tractor drawbar.
Install a 5/8" drilled bolt, 1, and plated washer up
though the tractor drawbar and extension. Use
plated washers as required at 2, and install slotted
nut, 3. Install a 1" drilled bolt, 4, and plated washer up
through the tractor drawbar and extension. Use
plated washers as required at 5, and installed slotted
nut, 6.
Tighten drilled bolt, 1, to 190 N⋅m (140 ft. lbs.) torque,
and install a 1/8" x 1" cotter pin.
Tighten drilled bolt, 4, to 271 N⋅m (200 ft. lbs.) torque,
and install a 3/16" x 1-3/4" cotter pin.
Install two 1/2" x 2" setscrews and jam nuts on each
side of the extension at 7. Tighten the setscrews
against the side of the tractor drawbar and tighten the
jam nuts.
IMPORTANT: If the drawbar extension is not used,
the hydrostatic pump, hoses, or tongue may be
damaged.
SECTION 1 - GENERAL INFORMATION
1-5
1
10005405
3
2
1
10004561
10
6
5
7
4
11