How to Troubleshoot & Replace Whirlpool AP6007463 / WP27001007 Drive Belt

Repair is relatively simple. Unplug washer, remove motor carriage, 4x1/2" bolts, then unplug motor and take belt off of pulley under wash tub. Remove 3 torx bolts securing pump, then pull pump off. Removing the pump isn't easily done without tools, but it can be done. Prying it off the motor with tools may damage it. Once the pump is off, replace the belt and put it all back together. 

Front needed to come out to access inside, removed motor and replaced belt. Diagram helped when putting the belt on the pulleys the correct way. 

Ordered a new pump, belt and idler pulley from AppliancePartsPro. Removed the 4 mounting bolts on the motor/pump assembly and removed the hoses from the pump, then tilted the motor to expose pump and belt. Removed 3 mounting screws (torx) from pump and pried the pump loose (some effort with short pry bar and screwdriver). Removed retainer c clip from idler pulley axle, removed old pulley, installed new pulley and c clip. Positioned moter/pump assembly and bolted it up. Positioned new belt on drive pulley, idler pulley and agitator shaft of washer. 

I replaced the worn parts. Removed the electric motor/pump assembly then took it to my motorcycle repair shop to clean/maintenance the motor, remove the old pump because it was stuck on the motor shaft. Once removed I blew out dust/debris from the motor w/compressed air. Sanded and filed the corrosion off the shaft, applied a "sealing grease" of sorts to the shaft to make potential future removal easier and reassembled. I took the whole wamma jamma home, reinstalled and wah-la, fixed. I am blessed more than most to have access to hand tools and other equipment at my shop. I could've fixed it completely at home but, since I've the ability to take it further, I did. 

Followed the video instructions which were spot on, down to socket size and torx driver size. 

Watch the repair video online for the step-by-step procedure. Note that the splined washer goes UNDER the nut (video is incorrect, shows it on top of the nut). The most difficult part of this job was separating the transmission from the tub. The video shows placing a board on the shaft, and pounding the board to push it out. You will get debris in the threaded hole in the center of the shaft (and need to clean this out before re-assembly). I used a board (with a mini-sledge), but it wasn’t separating, so I went to a piece of decking material (fake wood), and this still wasn’t cutting it. I finally had to get a metal plate, hold it over the shaft and pound. This loosened it. Do not pound directly on the shaft with your hammer/sledge. I also think that this pounding bent the washer that separates the smaller shaft from the larger shaft (went from flat to slightly caved-in), but the washer appears to be working fine. One other note was that I used the vise-grip on a rib (of the transmission) method to keep it from rotating while loosening the nut - I broke 2 ribs from the transmission. I ended up putting a 7/16” wrench on one of the transmission bolts, and allowed the open end to press against the frame for the transmission (place this to it’s hitting the frame head-on, and not trying to rotate the bolt). This method worked for loosening and tightening the nut - you’ll just need to try a few bolts to find the one that aims the wrench head-on towards one of the frame arms. 

Replaced the Spin Belt and washer Idler pulley wheel. 

I found one of the appliance parts pros videos on youtube that described how to replace the belt on my washing machine. It was a little tricky getting the motor out - I had to tilt it and wrangle it to get it out, but it came okay eventually. The belt was indeed cracked, not shredded, but I also discovered that the idler pulley wheel was chipped. I tried to order the parts from our local home-town appliance place, since I knew the owner, but they told me the parts were out of date and they'd quit making them. I looked at the linked url from the video I'd watched, and looked up the parts on appliance pros piece of cake, and not too expensive. I called back the shop and asked what gives. They said they only worked with original factory parts, and the online ones were generic. So, I ordered them on Friday morning, they came Tuesday morning. Perfect fits, fixed the problem, my wife thinks (correctly) that I am Mr Fixit. 

Ordered new belt from AppliancePartsPros. Took off front of washer. Freaked out when I looked at the belt routing inside the pump mounts. Got on the internet, discovered how easy to take whole pump and motor out. Did that, routed new belt, put pump and motor back in. 20 minutes. Now it works great. You gotta just have a basic socket set, a screwdriver, and fight your urge to freak out. 

Replaced belt