MacDon 3020 Pull-Type Windrower - Manual (Page 84)

73
TROUBLE SHOOTING
SYMPTOM PROBLEM SOLUTION REF.
DRIVES (continued)
Sickle drive belt
whipping.
Loose belt. Tighten belt. 52
Pulley or shaft bent. Replace damaged part. 47
PTO speed too high. Maintain proper RPM on
PTO.
Install correct pulleys.
---
7
Belt guides missing. Install guides. 52
Sickle loads excessive. Clean and adjust sickle.
Reduce ground speed.
48
19
Draper drive belts come
off.
Idlers misaligned. Adjust idlers. 60
Reel final drive belt
comes off.
Belt misaligned due to
reel position.
Center reel and tighten
reel brace.
54
Primary reel drive belt
comes off.
Idlers misaligned. Adjust idlers. 22
DRAPERS
Excessive wear on one
side of drapers.
Improper installation. Install correctly. 59
Drapers not tracking
parallel to cutterbar.
Adjust draper tracking. 56
Rollers dirty or bent. Clean or replace roller. ---
Insufficient draper
tension.
Adjust draper tension. 58
Rips or cuts in drapers. Bent draper tracks. Straighten draper
tracks.
---
Foreign material (sticks,
wire etc.).
Clear the area of foreign
material.
---
Draper slippage causing
burns.
Insufficient draper
tension.
Adjust draper tension. 58
Excessive wear or
breakage of draper
slats.
Insufficient draper
tension.
Adjust draper tension. 58
Lower draper track bent. Straighten track. ---