CTD DMC70A, Instruction Bulletin & Maintenance Manual

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1. 90M01L DMC70 Spindle, Left
90M01R DMC70 Spindle, Right
2. 8M03 DMC70 Flange
3. 8M02 DMC70 Slinger
4. 9B2P04X Double Row Bearing
5. 9B2P06
Snap Ring
6. 2B4P28 Spindle Pulley 2.6”, .787 bore
7. 2BM23 Pulley Key
8. 9B2P05 Belleville Springs (4 required)
9. 151P16L Jam Nut, Left
151P16R Jam Nut, Right
10. 9B2P03 Bearing, Jam Nut side
11. 70B4P25 3VX450 DMC70 Drive Belt Banded
(2 required)
12. 9A05 Spindle Housing
13. 9B1P44L Spindle Nut, Left
9B1P44R Spindle Nut, Right
DMC70 Spindle DMC70 Spindle
DMC70 Spindle DMC70 Spindle DMC70 Spindle Assembly Parts
Assembly Parts
Assembly Parts Assembly Parts Assembly Parts
4. With jam nut on end of spindle thread (to protect threads), gently tap jam nut toward slinger side using a lead or
rubber mallet. The spindle assembly will begin to move out of the spindle housing. Remove jam nut when assembly is
almost out. Spindle assembly consisting of Spindle No. 1, Slinger No. 3 and Bearing No. 4 will come out of housing.
Pulley No. 6 will slide out of housing when spindle assembly is removed. Bearing on jam nut side will slide out of
housing.
5. Replace bearings or belts as necessary.
6. Bearing on blade side is a press fit on spindle. If bearing on the blade side must be replaced, a puller must be used
to disassemble the bearing from the spindle.
7. Press new bearing No. 4 on to spindle, making sure spindle is square to the bore.
8. To re-install spindle in spindle housing, take Spindle
No. 1 (with Slinger No. 3 and Bearing No. 4), and slowly insert into housing.
9. Position Pulley No. 6 in center of housing. Place Key No. 7 in broached keyway in spindle. Position belts around
pulley, through housing. Push spindle through pulley, and through opposite wall of spindle housing.
10. From jam nut side of housing, place Belleville Springs No. 8 into housing. Be careful they are inserted correctly as
shown in diagram.
11. Now, push bearing No. 10 into housing and on spindle, being careful that bearing goes into housing square.
12. Replace jam nut No. 9 on spindle threads. Holding slinger No. 3 in vise, slowly tighten jam nut. This will cause
bearing to slowly push into housing. Tighten thoroughly until bearing bottoms out on shoulder of spindle.
13. Tighten set screws in pulley.
14. The face of Slinger No. 3 must be checked with a dial indicator to make sure it is running true. If it is not, it should
be refaced. To reface, use the side of a surface grinding wheel. Dress the face of the slinger by rotating spindle in
bearings slowly against the direction of the grinding wheel.
15. Replace housing on spindle Slide (P/N 70A04) with four hex cap screws.
16. Place belts around motor pulley and tighten.