background image

1.  Remove and discard 4 shipping bolts from each roll. 

Do not reuse these 

     bolts!

2.  From the top of the corn head, install 1 left half shell on the left stalk roll  
     shaft and 1 right half shell on the right stalk roll shaft. 

Note: If persuasion is necessary, tap the rolls only between the blades and bolts 
over the bosses as shown using a suitable punch. See image A. 

3.  Rotate the half shells horizontal as shown. See image B.

4.  Clean oil from 1 1/2” socket head cap screws, then apply lock tight 
     medium-strength thread locker. 

5.  From the bottom side of the corn head, install the right shell. See image C.  
 

Ensure both shells are aligned and using a 1 1/2” socket head cap screw in the 
middle hole, hand tighten to secure the shell.

 If bolts do not start easily, 

slide the shell front or back to align the holes.  

6.  Install the left shell following the same steps, then slide/pry the shells tight  
     against the spiral. 

7.  Clean oil from remaining  1 1/2” socket head cap screws, then apply lock     
     tight medium-strength thread locker. Hand tighten all screws.

9 www.CalmerCornHeads.com

A

B

FRONT

REAR

C

Summary of Contents for BT Chopper Upgrade Kit

Page 1: ...NEW HOLLAND 98D SERIES CORN HEADS www CalmerCornHeads com Weekdays 8 5 p m Office 309 629 9000 After Hours Weekends Marion s Cell 309 368 1182 Trademarks are not owned by affiliated with or under lic...

Page 2: ...ng Stalk Rolls 7 Step 4 Installing Calmer BT Chopper Stalk Rolls 8 Step 5 Installing Adjusting Calmer Stripper Plates 11 Step 6 Installing 7 Tooth Drive and 9 Tooth Idler 12 Sprockets and Gathering Ch...

Page 3: ...equirements please contact us at any time The intent of this manual is to provide guidelines to cover general use and to assist in avoiding ac cidents and injuries There may be times when circumstance...

Page 4: ...esult in minor or moderate injury NOTICE is used to address safety practices not related to personal safety This equipment is dangerous to children and persons unfamiliar with its operation The operat...

Page 5: ...d Upgrade Kit C D A B E F 309 629 9000 4 2 LOWER IDLER SPRING WASHERS 20 3 8 x 1 3 4 16 SOCKET HEAD CAP SCREWS 4 1 2 x 1 1 2 ROLL PINS 1 TRANSITION PLATE 2 CUT RESISTANT GLOVES 6 STAINLESS STEEL WASHE...

Page 6: ...ise and secure or remove the corn head dividers and hoods 3 Remove chain guides 4 Remove idler blocks 5 Remove stripper plates 6 Remove stripper transition plate at gear box 7 Remove all weed knives 8...

Page 7: ...4 Install new coupler 5 Install roll pins to attach drive coupler to stalk roll shaft 6 Perform spiral modification see page 7 7 DO NOT install BT Choppers Stalk Rolls at this time 8 Install stalk ro...

Page 8: ...opper s open window design modify the spiral by removing 2 short sections of the helicoid on each stalk roll This step is strongly suggested 2 Clean stalk roll shafts All material between the old blad...

Page 9: ...be adjusted to 23 25 degrees in standing corn and 20 degrees in down lodged corn for maximum performance and to avoid excessive wear on components Failure to do so will void warranty Notice The shell...

Page 10: ...1 2 socket head cap screws then apply lock tight medium strength thread locker 5 From the bottom side of the corn head install the right shell See image C Ensure both shells are aligned and using a 1...

Page 11: ...hown Tightening order 1A 1B 2A 2B 3A 3B 4A 4B 5A 5B Weed knives for 30 corn heads can be set to 1 8 clearance NOTICE To achieve 1 8 clearance you may need to trim the rear tab of the weed knives close...

Page 12: ...ting your Calmer Hydraulic Stripper Plates Position stripper plates so the center gap between the edge of the stripper plates is located over the center of the stripping tunnel For Hydraulic Plates On...

Page 13: ...e fixed by removing the idler bolt and adding a second washer enclosed at thebottom of the pipe spacer which is identical to the washer at the top of the pipe spacer See photo below Apply anti seize o...

Page 14: ...ket 7 Place 1 stainless steel washer provided on 8 Reinstall 5 8 lock washer and nut some the plow bolt on top of the idler sprocket heads have regular 5 8 washer and a lock nut and torque to 100 ft l...

Page 15: ...hain paddles are available for purchase from Calmer Corn Heads 13 Reinstall bolt and washer into top of gathering shaft to secure 7 tooth sprocket 14 Tighten the gathering chain tightener until there...

Page 16: ...ead Angle A properly adjusted corn head angle is critical to its performance For optimum performance and to retain Calmer s warranty on parts the corn head angle MUST be set between 23 25 degrees in s...

Page 17: ...r house chain ultimately reducing ear toss Note Adding half and or full links to lengthen the feeder house chain will move it closer to the auger Cross Auger Flighting Cross auger should be vertically...

Page 18: ...t for calibrating corn head speeds 1 Install and hammer the two provided carriage bolts into each paddle ensuring the bolt shoulders are seated in the paddles Repeat for remaining paddles and bolts wh...

Page 19: ...______________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ __...

Page 20: ...e part If the Calmer part does not work in a manner that you expected we prom ise that we will work with you to adjust settings and to see if we can obtain satisfactory performance In the end if the C...

Reviews: