MacDon M155 Installation Instructions Manual page 23

6. Remove upper plug (A) on both sides of windrower leg,
opening access holes through which you can access
the wheel drive motor servo.
7. Through one of the access holes, remove one of the
existing servo bolts (A) with a 5 mm hex wrench and
replace it with one of the hex socket head screws
(MD #136652) provided in the kit. If your wrench does
not line up, use a wrench on lock nut (B) to move
the hydraulic motor inside the leg. Only replace the
first bolt that can be accessed on each side of the
windrower leg.
8. Torque to 150–153 in·lbf (16.8–17.3 N·m).
9. Loosen the chain and twist motor using wrench at
(B) to rotate wheel motor to access the other bolt at
(C). Replace with one of the hex socket head screws
(MD #136652) provided in the kit. Repeat on the other
side of the windrower leg.
10. Torque to 150–153 in·lbf (16.8–17.3 N·m).
11. Once you have replaced two servo bolts on each side
of the windrower leg, continue on to the next step.
12. Ease out the wheel drive motor assembly so that you
can just access the brake line fitting (A). Loosen and
turn line from vertical and lay over horizontally for the
next few steps.
NOTE:
On the left-hand wheel motor there is a speed
sensor, make sure not to damage it when
removing the wheel drive.
147595
INSTALLATION INSTRUCTIONS
Figure 3.18: Plugs in Windrower Leg
Figure 3.19: Windrower Leg Illustrated as if
Transparent
Figure 3.20: Wheel Drive Motor Assembly with
Brake Line Fitting Visible
17
Revision B