Motor Mount R&R

Read the instructions on this page thoroughly. If you feel confident in your mechanical ability to perform these steps, THEN call Chris Coffee Service (assuming you purchased your S1 there and your serial number is lower than 252263) and request a new set of motor mounts.

Owners with serial numbers lower than 252263 have the original motor mounts and can DRASTICALLY quiet their machines by requesting a set of upgraded motor mounts and installing them as shown below. This is the definitive quieting solution. It should make any other steps previously discussed unnecessary. If your serial number is 252263 or above you already have the new motor mounts.

Note: the initial procedure before doing any of the steps below: a) turn off and unplug unit b) turn off water supply to the unit c) let the unit cool down completely.

1. Location of Phillips screw (A) in center front of warming tray. After removal, pull tray straight up and then splash panel (C) pulls right out.
2. Two Phillips screws (B) allow removal of the front metal panel. The portafilter (E) must also be removed.
3. Remove drip tray (D)

Picture 2 - remove Side Panels

Note: You can get by with only removing the right side panel if you wish. However, taking them both off gives to a better chance to ensure that everything is snug and tight when you reassemble.

There are three black plastic thumb screws that must be removed on each side and two large Phillips screws that must be loosened on the bottom of the chassis on each side to allow removal of both side panels.

1) Location of the front two of the six plastic thumb screws (G) that need to be removed in order to pull off the two side panels. Location of the other four thumb screws required to remove both side panels shown in the next photo below.

2) Inside locations H) of three of the four screws which must be loosened slightly (from the bottom) in order to remove the side panels.

3) There is an "L" shaped chrome piece behind the letters (D) and (E) in the above photo. It bends around the area above the letter (H). Also, above the letter (H), but not visible in the photo, is a single screw that holds this chrome piece on. Remove it.

Picture 3 - Complete Side Panel Removal and Rear Panel Removal

1) Inside location of holes (G) for the left side panel's plastic thumb screws.

2) Holes (F) where right side plastic thumb screws are screwed through from the inside.

3) These are the only screws (E) that attach the back panel. Remove these two screws and remove the back panel

1) When you need to lift and/or move the motor E)forward in the steps below, do so by actually holding the motor. Don't lift using the cylindrical part attached to the top of the motor shown with the black letter (A) on the end.

2) Only the right side pair of motor mount nuts are shown as (C) and (D) in the photo on the left. You can see by the proximity to the steam boiler to its right why you want the unit completely cool when performing the following steps!

The old motor mount is shown on the right in the above photo.

1. Reminder: At this point be sure the covers are removed as outlined above, the water is turned off, the power cord is unplugged, and the unit is completely cooled.
2. Using an open end wrench, Loosen bolts C) on all four motor mounts at the base of the motor on the inside of the chassis.
3. Lay the S1 on its left side. Remove all four bolts D) from the bottom side of the chassis and then finish removal of bolts (C). Note that there is also a flat washer behind bolt D which is not shown in the above photo.
4. Lift the motor as required to remove the four rubber assemblies. Set all of these parts aside. None of them are needed again.
5. Tip S1 back to normal horizontal position.

The new motor mount is shown on the left side of the photo above. The rubberized mount can be installed with either threaded end up. However, brass nut (A) screws on at the base of the motor and steel bolt (B) screws on from the under side of the chassis. NOTE THAT THE CYLINDRICAL PART OF BOLT (A) GOES THROUGH THE MOUNTING HOLE ON THE MOTOR BASE.

At this point the motor is completely free. The wire bundle and two flexible water hoses allow for plenty of movement to aid installation of the new motor mounts.

Note: Steps 2 - 6, below, are performed from the front of the S1, all other steps are performed from the rear.

1. Slide the motor forward slightly so that the two front motor mount holes are over the opening in the bottom of the chassis. This hole will give you the room needed to screw in the front motor mounts.
2. Insert the cylindrical part of the brass nut through the holein the motor base on either of the front mounting holes.
3. Hold the brass nut in place with one hand while screwing one of the threaded ends of the rubberized motor mount assembly into it with the other hand. Use the opening in the bottom of the chassis, which is visible above in picture 2 below the pump (C), so that you have room to do this.
4. Twist the rubber part until the brass nut is hand tight ensuring that the cylindrical part of the brass nut remains completely seated through the hole in the motor mount. Then finish tightening the brass nut with a wrench.
5. Repeat steps 2-4 for the other front mount.
6. Slide the motor back so that the threaded bottom part of the front rubberized motor mounts drops through the front chassis holes.
7. From the rear of the S1, lift the back side of the motor up and slide one of the remaining rubberized motor mounts so that one end of the threaded part goes up through one of the the rear motor mount holes and the other end goes through the hole in the bottom of the chassis. Repeat for the other rear motor mount.
8. Screw brass nut (A) on to the top side of the Motor Mount hole ensuring that the cylindrical part is fully seated in the motor mount hole and tighten the rubberized motor mount hand tight as in step 4. Repeat for the other rear motor mount. Then tighten both brass nuts with a wrench.
9. Tip the S1 over on its left side.
10. Screw all four nuts (B) onto threaded shafts sticking through the bottom of the chassis. Use a wrench or nut driver to tighten.

You're done. Double check that you didn't pinch any wires under the motor mounts and reassemble the unit in the reverse order shown above. Be amazed by the quiet.