MacDon 742 HAY CONDITIONER - Manual (Page 20)

Form # 46290 Issue 09/05 18
OPERATION
BREAK-IN PERIOD
1. After attaching header to combine or wind-
rower tractor for the first time, operate the
machine with reel drapers and sickle running
slowly for 5 minutes, watching and listening
FROM THE OPERATOR'S SEAT for binding or
interfering parts.
CAUTION: Before investigating an
unusual sound or attempting to
correct a problem, shut off engine,
engage parking brake and remove
key.
NOTE: Reel and side drapers will not operate until
oil flow fills the lines.
2. Change hydraulic oil filter(s) as recommended
in combine or windrower tractor Operator's
Manual.
3. Check hay conditioner chain tension after 2
hours for proper tension. See Maintenance/
Service section.
4. Adjust the tension of sickle drive belt(s) (A)
after a 5 hour run-in period. (See Maintenance/
Service section.) Continue to check the belt
tension periodically for the first 50 hours.
5. Tighten any loose hardware after the first
5 hours operation. See Specifications section
for recommended torques.
6. Tighten the four wobble box mounting bolts (B)
after the first 10 hours operation and every
100 hours thereafter. Torque to 200 ft.lbs. (270
N·m), starting with the side mounting bolts.
7. Change wobble box lubricant after the first
50 hours operation and every 1000 hours (or 3
years) thereafter. See Maintenance/Service
section.
CHECK SICKLE DRIVE BELT TENSION
(WINDROWER CONFIGURATION SHOWN)
A
TIGHTEN FOUR WOBBLE BOX
MOUNTING BOLTS
B
CHECK CONDITIONER CHAIN TENSION