MacDon CA25 OM - Manual (Page 191)

SECTION 9. TROUBLESHOOTING
* See your MacDon Dealer
** Refer to your Combine Operator’s Manual
*** Refer to your Technical Service Manual
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189
Revision B
(continued next page)
SYMPTOM PROBLEM SOLUTION SECTION
Reel Releases Crop Too
Quickly.
Reel tines not aggressive
enough.
Increase cam setting. 7.9.10
Reel too far forward. Move reel back. 7.9.9
Reel Will Not Lift.
Reel lift couplers are
incompatible or defective.
Change quick coupler. ---
Reel Will Not Turn.
Quick couplers not properly
connected.
Connect couplers. **
Reel drive chain disconnected. Connect chain.
8.12.4
Reel Motion Uneven Under
No Load. Excessive slack in reel drive
chain.
Tighten chain.
Reel Motion Is Uneven or
Stalls In Heavy Crops.
Reel speed too fast. Reduce reel speed. 7.9.4
Reel fingers not aggressive
enough. Move to a more aggressive
finger pitch notch.
7.9.10
Reel too low. Raise reel. 7.9.8
Relief valve on combine (not on
combine adapter) has low relief
pressure setting. Increase relief pressure to
manufacturer’s
recommendations.
**
Reel Motion Is Uneven Or
Stalls In Heavy Crop.
Low oil reservoir level on
combine. (NOTE: Sometimes
more than one reservoir.)
Fill to proper level.
Relief valve malfunction. Replace relief valve.
Cutting tough crops with high-
speed (19 tooth) reel drive
sprocket. Replace with high torque
(10 tooth) or 14 tooth reel
drive sprocket.
8.12.5
Plastic Fingers Cut at Tip.
Insufficient reel to cutterbar
clearance.
Increase clearance. 8.12.1
Plastic Fingers Bent
Rearward at Tip.
Reel digging into ground with
reel speed slower than ground
speed.
Raise header. 7.9.1
Decrease header tilt. 7.9.3
Move reel aft. 7.9.9
Plastic fingers Bent Forward
at Tip (opposite of above).
Reel digging into ground with
reel speed faster than ground
speed.
Raise header. 7.9.1
Decrease header tilt. 7.9.3
Move reel aft. 7.9.9