Part Location Diagram of CM9-50-2207 Jet DRUM SHAFT COUPLING
See part C-56 in the diagram

DRUM SHAFT COUPLING CM9-50-2207

Manufactured by:
Jet
ERP Number:
ERP19119320
Part Number:
CM9-50-2207
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

30 - 60 mins 

(7 rated repairs) ?

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Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Jet
This part works with the following products:
  • Sander Grinder
  • Sander
  • Sander Polisher
Part# CM9-50-2207 replaces these:
50-2207,

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

30 - 60 mins 

(7 rated repairs) ?
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Spider and coupling shattered over time (16 yrs.)

John from Columbia City, Indiana

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Socket set, Wrench set
Parts Used:
CM9-50-2209, CM9-50-2207
The thing that really helped was building an carriage cradle to hold the motor and another one for the drum & housing, to keep them positioned in the correct plane. And that facilitated the removal of the bolts holding them all together without them crashing apart as the bolts came loose.

This technique was especially helpfu l when reinstalling the unit after the repair was done to install the now repaired shaft coupler and spider.
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Couplers had loosened to the point where the spider was torn to shreds

Bryan from Winter Garden, Florida

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Socket set
Parts Used:
CM9-50-2209, CM9-50-2207
Loosened the 4 motor mounting bolts with a socket set. Removed both couplers with allen keys. Replaced sanding drum side with the new coupler and then motor side. Fit spider in the sanding drum side coupler and remounted motor back into place matching both couplers to each other. Closed any gaps between couplers and tightened with allen k eys. Good as new!
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Spider gear and one half of the drum shaft coupling broke/sheared off

John from Greensboro, North Carolina

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
1- 2 hours
Tools:
Socket set
Parts Used:
CM9-50-2209, CM9-50-2207
1. Lowered the drum to rest on two pieces of 2x4 lumber.
2. Removed the bolts that attach the drum carriage to the motor slide.
3. Pulled the drum carriage away from the motor slide to separate the two halves of the drum shaft coupling.
4. Loosened the set screws in the broken half of the drum shaft coupling and removed the coupling and the spider.
5. Installed a new half of the drum shaft coupling and tightened the set screws.
6. Installed the spider between the two halves of the drum shaft coupling and pushed the drum carriage back into contact with the motor slide.
7. Installed and tightened the bolts connecting the drum carriage to the motor slide.
8. Followed the instructions in the owners manual to reset the level of the drum in relation to the feed belt.
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Original coupling broke off due to metal fatigue.

DOMINIC from SCOTTSDALE, Arizona

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set, Wrench set
Parts Used:
CM9-50-2207
Raised drum assembly,
Removed motor and height adjustment carriage,
Removed old broken coupling from motor shaft and drum shaft.
Replaced both with new part.
Re assembly of height carriage is difficult in that the lower two bolts are very difficult to get a wrench or socket on.
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Jet 22-44 Plus made a clunk at start and rattle during operation. Broken drive couplings and spider.

Loren from NAPA, California

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Wrench (Adjustable), Wrench set
Parts Used:
CM9-50-2209, CM9-50-2207
WD-40 on all bolts and set screws.
Loosened set screws on couplings.
Elevated drum head with crank for better bottom motor mount screws.
Put boards under motor for support
Remove motor screws and remove motor
Pry off couplings and keys
Clean up drum an motor shafts with emery cloth
Replace coupli ngs and insert spider in drum couplings
Reattach motor, aligning the couplings and tighten bolts
Check couplings position and tighten set screws.
Now it works silently
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Spider coupling tore

Curtis from New Limerick, Maine

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Socket set
Parts Used:
CM9-50-2209, CM9-50-2207
The parts were used on a Supermax 16-32. There are four bolts on the drum side to the frame that will need to be removed. The couplings have two alan set screw\'s that will need to be removed. The couplings slide off easy / some have said they had to use a puller (I did not). The replacement of these parts also solved the clicking noise t hat I had since the first day of getting my \"NEW\" Supermax 16-32. I would not recommend replacing the spider without the couplings (2). Careful examination will show that they have damage and cause the new spider coupling to go bad. Total time was less than 15 minutes.
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Shaft coupling broke

Robert from Conway, Massachusetts

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set
Parts Used:
CM9-50-2209, CM9-50-2207
The four bolts holding the motor are difficult to get at. I used a socket with universal joint and still was difficult to get at. First loosen the two allen screws put them in a safe place they don\'t come with replacement screws take out the four bolts the motor could drop on the floor so hang onto the motor it is a little heavy place th e motor on the bench the drum is also discounted. Take all allen screws out pull the couplings off you might need some p b blaster to loosen couplers you don\'t need a puller let the liquid wrench work it could just pull off if not use a large flat head screw driver to pry loose. There are key ways on both drum and motor couplings. Don\'t loose them clean the shafts put coupling on the motor first tighten. Then put the one on the drum side just tighten but leave a little loose you will make the adjustment with this coupling spray a little lubricant on the spider this will help keep the spider from binding when put together the couplings should fit tight against the spider make sure it is not bound up. It is great to have someone to hold the motor while putting all together my wife helped me. With everything tight your ready to go. One thing when you put the couplings on the shaft make sure the keys in the key ways are in the middle of the shaft they sometimes slide ahead of the couplings use a small screw driver to push them back in place. I couldn\'t find anything on the net to show you how to do this they recommend sending it out to be fixed it could be cheaper to buy a new sander. Just kidding keep everything together till you get your new parts and they come fast. Good luck
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