MacDon 742 HAY CONDITIONER - Manual (Page 109)

Form # 46290 Issue 09/05 107
UNLOADING & ASSEMBLY
Moving Draper Drive Motors: (continued)
Moving Motors from Inboard to Outboard: Refer to illustration on next page.
1. Slide both decks inward enough to gain access to all rollers from end of decks.
2. Loosen and remove drapers.
3. Remove idler roller from tensioning mechanism by pulling out on roller enough to allow spring rod (A)
to pass through hole in deck backsheet. Remove spring rod and pull idler assembly out of deck.
4. Remove drive roller by taking out bolt in rear support arm (B) and disconnecting hoses from drive
motor.
NOTE: Mark the hose that goes to top port of motor and plug hoses and motor ports to prevent
contamination.
5. Install drive roller/motor assembly in outboard position as shown by reversing Step 3 above. (Removal
of idler roller.)
NOTE: Be sure when installing spring rod (A) that it passes through retainer clip (C) and front support
arm (D).
6. Install hydraulic hoses as shown. IMPORTANT: Hoses that were connected to top motor ports are
now connected to bottom ports.
7. If narrow opening kit is also being installed at this time, proceed to Step 8. Otherwise, go to
Step 11.
8. Remove front roller stop (E) at center opening. Retain hardware for re-use.
9. Remove short arms from idler roller and replace with longer arms (F) and (G) from narrow opening kit.
Torque 5/8 nuts to 35 to 40 ft. lbs.
10. Install draper extension piece from kit using connector bars supplied.
11. Insert idler roller assembly in deck as shown. Attach front arm (F) to channel and tighten hardware.
NOTE: Without extension kit, front idler arm will be item (H), which butts against item (E).
12. To ensure square alignment for proper draper tracking, align rollers as described under “Draper
Tracking Adjustment” on page 70 of Operator’s Manual.
13. Tighten rear arm hardware.
14. Re-couple draper and tension.
15. Re-position decks. For hydraulic shift headers; if draper was added, reposition deck stops as
described on page 30 of Operator’s Manual.
Moving Motors from Outboard to Inboard
Follow the above procedure with these exceptions:
1. Purchase the following : front roller stop (E), Part No. 103393 qty. 2
L/H front idler roller arm (H), Part No. 103433 qty. 1
R/H front idler roller arm, Part No. 103434 qty. 1
L/H rear idler roller arm (J), Part No. 103435 qty. 1
R/H rear idler roller arm, Part No. 103437 qty. 1
2. After removing idler rollers, install new idler bars (H) & (J) and attach front roller stops (E).
3. If the current opening size is narrow (drapers uncut), it will be necessary to cut drapers. Only the wide
opening size is possible with drive motors inboard.