Before the start of each harvesting season, check the following combine adjustments.

Setting Cylinder Access Door to Cylinder - If the front door is not correctly adjusted, crop can feed back down on the top of the feeder house (See SETTING CYLINDER ACCESS DOOR TO CYLINDER in the Separator section of this manual.

Adjusting Cylinder Drive Gap - Run cylinder sheaves to close the intermediate sheaves. If sheave gap is more than 8 mm (5/16-in.) it limits sheave travel. If sheave gap is less than 4 mm (3/16 in.), it limits torque sensing (See ADJUSTING CYLINDER DRIVE GAP in the Separator section of this manual.

Cylinder Belt Idler Adjustment - If cylinder belt tension is not set properly, belt slipping (burning) or belt failure may occur (See CYLINDER BELT IDLER ADJUSTMENT in the Separator section of this manual.

Concave Adjustment - Proper concave adjustment is CRITICAL to the overall harvesting performance of the combine. If the concave is not adjusted correctly, the following symptoms may occur:

• poor threshing
• poor separating
• poor grain quality
• straw walker loss
• reduced combine capacity

See CONCAVE ADJUSTMENT in the Separator section of this manual.

Spike Tooth Clearance and Replacement - If spike-tooth clearance is not correct, damage to teeth may occur and threshing performance will be affected (See REPLACING SPIKE-TEETH AND CHECKING CLEARANCE in the Separator section of this manual).

Rear Concave Inserts - The inserts which can also be used with the spike tooth concave, prevent excessive material from passing through the open area at the rear of the short wire and spike tooth concave to

Adjusting Beater Grate - The beater grate is assembled in the upper position for all crops. If backfeeding is a problem, move the beater grate to the lower position (See ADJUSTING BEATER GRATE [RASP BAR CYLINDER] in the Separator section of this manual.

Adjusting Finger Bar (Spike-Tooth) - The finger bar is assembled in the upper position for all crops. If backfeeding is a problem, move finger bar to the lower position (See ADJUSTING FINGER BAR [SPIKE-TOOTH CYLINDER] in the Separator section of this manual.

Clean Grain Elevator Chain Adjustment - Improper adjustment will result in premature wear to chain paddles, sprockets and elevator housing (See ADJUSTING CLEAN GRAIN ELEVATOR CHAIN in the Separator section of this manual).

Tailings Elevator Belt Adjustment - Improper adjustment will result in belt slipping or belt failure (See ADJUSTING TAILINGS ELEVATOR BELT in the Separator section of this manual).

Tailings Elevator Drive Chain Adjustment - Improper adjustment will result in premature wear of chain and sprocket (See ADJUSTING TAILINGS ELEVATOR BELT in the Separator section of this manual).

Tailings Elevator Paddle Chain Adjustment - Improper adjustment will result in premature wear to chain, paddles, sprocket and elevator housing (See ADJUSTING TAILINGS ELEVATOR PADDLE CHAIN in the Separator section of this manual).

Upper Tailings Auger Drive Chain Adjustment - Improper adjustment will result in premature wear to sprockets and chain (See ADJUSTING UPPER TAILINGS AUGER DRIVE CHAIN in the Separator section of this manual).

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Straw Chopper Baffle Adjustment - Adjust baffle up or down to control distance chopped material is spread (See ADJUSTING BAFFLE in the Straw Chopper and Spreaders section of this manual).

Straw Chopper Fin Adjustment - Adjust fins so material is spread over a wide area but does not cover uncut crop (See ADJUSTING STRAW CHOPPER FINS in the Straw Chopper and Spreaders section of this manual).

Knife Adjustment - Position of knives determines the cut length of straw, to adjust knives (See ADJUSTING

Changing Straw Chopper Speeds - The front belt can be installed on the outside sheave grooves for 1200 rpm or installed on the inside sheave grooves for 2500 rpm (See CHANGING STRAW CHOPPER SPEEDS in the Straw Chopper and Spreaders section of this manual).

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