MacDon 742 HAY CONDITIONER - Manual (Page 119)

Form # 46290 Issue 09/05 117
UNLOADING & ASSEMBLY
ATTACHING HAY CONDITIONER
(continued)
11. cont’d
For Tractors Prior to 52 Series (16 inch rims):
• Shorten R/H lift chain to 13 links total
length.
• Install clevis, lock washer (K) & lynch pin
(L) to secure upper end of chain to lift
linkage pin.
• Secure lower end to R/H conditioner
mount with bolt.
• With cutterbar set at desired cutting
height, adjust chain length at clevis for 1-
1/2 to 2 inch ground clearance to
conditioner shoe.
12. Raise header fully. Stop engine, remove key
and engage header lift cylinder stops.
13. Install chain for float spring on pin (L) at left
side of conditioner. Connect at the fourth chain
link from the spring to start. See Conditioner
Float Adjustment under "Operating Variables".
14. Install belts over header pulley (M).
NOTE: There must be 5 inches (125 mm)
exposed bolt thread (bottom of pivot to spring
plug) on bolt (N) to allow belt installation. Turn
bolt (N) counter-clockwise to increase exposed
thread length.
15. Align pulleys, then install and tighten three
bushing bolts (J) to secure the pulley position.
16. Tighten belts by turning bolt (N) clockwise until
spring plug contacts bottom of pivot (P).
17. Ensure mounting bracket (B) for clean-out bolts
on lower roll driven pulley is not interfering with
belt travel.
Also, ensure clean-out bolts are centered in
pulley grooves. Mounting bracket can be
adjusted laterally to properly position bolts.
CONNECT FLOAT SPRING &
INSTALL BELTS
N
P
L
M
J
B
ALIGN BRACKET FOR CLEAN-OUT BOLTS
CHAIN ADJUSTED TO 13 LINKS