I've had this 70 series for about 10 years and
This assumes that you have a basic Kenmore / Whirlpool top load, direct drive, neutral drain (it doesn't spin until the pump removes most of the water) machine.
First, see the Sears parts site for your washer:
Enter your model number (###.#######) and you'll see a list of major sub-components with diagrams and parts.
Kenmore / Whirlpool top load, direct drive washers use a "Motor Coupler" between the motor and transmission.
It's used as a fail safe device and consists of three parts.
Two of the parts are the same, plastic units with three prongs that fit on one of the motor output shafts and the other on the transmission input shaft. Between them is a rubber piece with six holes.
The power from the motor is transmitted through the rubber piece to the transmission.
The other shaft on the motor directly drives the pump.
If the motor coupler is broken, or worn, the motor may not be able to send full power to the transmission for agitating or spinning.
See the following for how to remove the cabinet, pump, motor and motor mounting plate to inspect and replace the motor coupler.
If the coupler looks damaged, it's a relatively easy fix.
Pry the plastic pieces from the motor and transmission. Some people use a claw hammer but I've found that using a small (6 inch) pry bar works well.
Carefully fit the plastic pieces over the motor and transmission shafts and press them in place (Use a 1/2" of larger socket to put pressure equally around the pieces.
Put the rubber piece on the transmission plastic piece.
Replace the motor mounting plate.
Carefully line up the plastic prongs on the motor based plastic piece to the three un-used holes in the rubber piece. If they don't line up right, the coupler could be damaged.
Mount the motor, don't forget the two screws, put the pump back on the motor and use its' clips.
Put the cabinet back on, don't forget to plug the lid switch back in and re-mount the console.
If the motor coupler is OK, the problem could be the clutch:
Sears has a replacement clutch band kit.
See the following for how to pull the pump, motor and transmission.
You DON'T HAVE TO PULL THE AGITATORS OR TUB.
Also see the Whirlpool / kenmore service manual for these washers.
Both the Motor coupler (available from most appliance parts stores) and the clutch band kit are relatively inexpensive.
See the Following Whirlpool parts list for alternatives to the Sears part numbers.
It's also possible that the Neutral Drain Assembly in the transmission is broken:
The Kenmore / Whirlpool top load uses a reversing motor to initiate the pump for draining and the transmission to spin.
If it will drain but won't spin the problem is likely in the transmission. "Neutral Drain Assembly".
See the Whirlpool / Kenmore Service manual for top load direct drive washers.
WHIRLPOOL TRANSMISSION DESCRIPTION AND SPRINGS
Those cams/gears etc. in that assembly keep the washer from spinning until all of the water is pumped out and then go into spin mode.
After looking at the transmission parts list (available on a number of sites) and on the Whirlpool site (Whirlpool makes Kenmore) we noticed that the one of the cams in the neutral assembly which is supposed to have a small spring, didn't on ours when we tore the transmission apart again
Found the part number for a kit (Whirlpool part number 388253 Neutral Assembly) for $15.00 and replaced the cams and gears.
In order to get the transmission out, you have to remove the cabinet, the fabric dispenser and both agitators. The top agitator uses a plastic 1/2" drive bolt (a 1/2" socket extension works well).
You don't have to remove the drum.
Lay the machine down (after disconnecting power and hoses, remove the pump (two clips), the motor (two screws hold two clips on the motor), lift and set the motor aside.
Remove two 1/2 inch bolts for the motor mounting plate and three 1/2 inch bolts for the transmission.
Pull the transmission, remove the clutch (there is a spring clip that holds the clutch on the main agitator shaft), remove the 8 screws carefully the transmission holds 14 - 15Oz of oil, remove the clip holding the main spin gear on and check the plastic cams.
If the cam that should have a spring doesn't, or the others look damaged, or the main spin gear is damaged the washer won't go into spin mode.
If that's the problem, install a Neutral drain kit, put everything back together carefully and the problem may be solved.
If it isn't the motor coupler or clutch or Neutral Drain Assembly it could be the "agitate cams" in the transmission.
These are plastic pieces that move the agitator drive shaft up about 1/4" when the washer goes into the spin cycle. If they are worn, you may hear a grinding noise.
Since you may already have the transmission apart, these are an inexpensive and easy fix.
Also see the Whirlpool / Kenmore service manual for top load direct drive washers.
See also a more detailed description from Whirlpool of how their transmissions work.
Remove the cabinet, pump, motor and transmission. YOU DON'T HAVE TO REMOVE THE AGITATORS OR TUB.
I had the same problem with major gear grinding during the spin cycle and this solved it.
The agitator cam and follower use the same whirlpool part number 62580/01. This is a plastic set used to raise the agitate gear on the shaft.
Pull the transmission.
Remove the clutch (the spring holding the clutch to the spin pinion is a bear to replace.
Remove the 8 transmission screws carefully, the transmission is full (15 oz.) of 80-90 weight gear oil.
Remove the transmission cover.
Pull off the spin pinion.
Push down on the agitate spring and remove the spring clip. Note where is attaches to the main shaft.
The two plastic agitate cam parts pull right off. Don't lose the washer on top of the cams.
Replace the cams, washer, spring and clip, pinion, oil (assuming you drained the oil first), cover and clutch parts.
Line up the transmission so that the release cam on the brake drum will snap onto the clutch spring retaining clip and put all parts back in the washer.
The basic tools are screwdriver, small socket set with up to a 1/2" socket, vice grips or good pliers (to remove and replace clips)
Be sure to align the holes on the Motor Coupler correctly or the motor and transmission won't fit together correctly.
Following is also the Whirlpool parts list for their commercial top load direct drive washers that has a better description of the cams and the Whirlpool part numbers.
It is a bit of a messy job but much ($10 vs $170 for a transmission) less than having a service person replace the transmission.
Be sure to study the Service manual so that you can see exactly how the cams work.Also see the Whirlpool / Kenmore service manual for top load direct drive washers.
As an aside, fixing ours cost less than $30 including 80-90 weight gear oil vs. $170 for a new transmission.
Mar 25, 2010 |
Kenmore Washing Machines