MacDon M1 Series Unloading And Assembly Instructions page 189

17. Engage the safety props on both lift cylinders as follows:
a. Pull lever (A) toward you to release it, and then rotate
it toward the header to lower the safety prop onto the
cylinder.
b. Repeat the previous step for the opposite lift cylinder.
IMPORTANT:
Ensure that the safety props engage over the cylinder piston
rods. If the safety prop does NOT engage properly, raise the
header until the safety prop fits over the rod.
18. Install clevis pin (A) through the support and windrower lift
arm and secure it with hairpin (B). Repeat this step for the
opposite side of the header.
IMPORTANT:
Ensure that clevis pin (A) is inserted as far as possible, and
that the hairpin is installed behind the bracket.
19. Disengage the safety props on both lift cylinders as follows:
a. Turn lever (A) away from the header to raise the safety
prop until the lever locks into the vertical position.
b. Repeat the previous step for the opposite cylinder.
NOTE:
If the safety prop will NOT disengage, raise the header to
release the prop.
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ATTACHING A HEADER TO THE WINDROWER
177
Figure 5.122: Safety Prop Lever
Figure 5.123: Header Support
Figure 5.124: Safety Prop Lever
Revision A