MacDon M155 Unloading And Assembly Instructions page 208

3. Remove hairpin (B) from clevis pin (A), and then remove
the clevis pin from header support (C) on both sides of the
header.
4. To disengage the float springs, move the float engagement
pin from engaged position (A) and insert the pin into
storage hole (B). Secure the float engagement pin with a
lynch pin. Repeat this step for the opposite linkage.
IMPORTANT:
To avoid damaging the lift system when lowering the
header lift linkages without a header or a weight box
attached, ensure that the float engagement pin is installed
in storage position (B) and NOT in engaged position (A).
DANGER
Ensure that all bystanders have cleared the area.
5. Start the engine and activate HEADER DOWN button (A) on
the ground speed lever (GSL) to fully retract the header lift
cylinders.
262320
ATTACHING HEADERS
Figure 6.165: Header Support
Figure 6.166: Header Float Linkage
Figure 6.167: Ground Speed Lever
192
B
A
A
A
C
B
Revision A