J&M HT-874XL-36 - Manual (Page 8)

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SET-UP INSTRUCTIONS
Have tires mounted to wheels according to tire manufacturer’s recommendations.
Remove lug nuts on Back and Front Assemblies. Mount wheels to hubs and fasten lug nuts securely
(80 torque). (Lug nuts should be checked after each load during initial operation of the header transport
and then after every 10 hours of use.)
Attach the Large Lower Bar to the front and back assemblies using eight 1/2” x 4 1/2” bolts and eight
1/2” lock nuts. Attach Small Lower Bar using eight 1/2” x 4 1/2” bolts and eight 1/2” lock nuts.
Attach the Tongue Assembly to the front assembly using 1 1/4” x 11 3/4” Tongue Bolt and 1 1/4” hex
nut. Attach one end of the Large Tongue Spring to the top bracket on the tongue assembly. Lift tongue
and loop other end of spring over the mounting bracket on hitch assembly that is attached to the Front
Assembly. If equipped with a Quick-Hitch Tongue Assembly, check to make sure that the safety catch
(7/8” x 2 1/4” bolt with spacer) under the tongue assembly (slide of quick-hitch) is secure.
Remove one 3/8” x 3 1/2” bolt from end of slide channel on axle. Remove 1/2” Slide Bolt Weldments
from Adjustable Bracket and insert into slide channel. Place adjustable bracket over slot on top of both
Slide Bolt Weldments on the front axle assembly. Attach and secure the 1/2” Handle Nuts with lock
washers. Place the other adjustable bracket over the slot on the top of the back axle assembly and
attach in the same way. Equally space Upper Bar on adjustable bracket support and fasten using two
Upper Bar Clamps, four 1/2” flat washers and four 1/2” lock nuts. Reattach 3/8” x 3 1/2” bolt to end of
slide channel.
Attach the Header Mounts using the Fast Clamp Nut and Bolt. For different mounting positions, refer
to the diagrams at the end of this section. IMPORTANT: Make sure that the clamping handle is in
the up position for maximum ground clearance before operating the header transport.
Attach the Tie-Down Bracket and Strap Assembly with ratchet to the outside of the Lower Bar. DO
NOT OVER TIGHTEN THE 1/2” BOLTS ON THE TOP OF THE ASSEMBLY, BUT ALLOW THE TIE-
DOWN BRACKETS TO MOVE FREELY ALONG THE LOWER BAR.
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PARTS DIAGRAM