Milnor 30015 Service Manual Download

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On 30020 and 30022 Machines—Remove the rear

bearing housing and rear reinforcing plate mounting bolts.

1. Remove the rear reinforcing plate very carefully, noting

the position of bearing support tap strips and shims.
Note the position of the shims; they must be replaced
in the same position.

2. Remove the bearing housing from the frame. Remove

plate and grind off the alignment washers (as shown in
FIGURE 4). and discard old alignment washers.

3. Grind rear reinforcing plate smooth in preparation for

main bearing re-installation.

Installing the Bearing Housing and Shell

NOTE 1: Use new bolts when reassembling the machine.

NOTE 2: Apply Permatex 2C adhesive (or equivalent)
to both sides of the new bearing housing gaskets.

NOTE 3: Install a new NYLTITE washer and nut gasket on each new shell bolt (see FIGURE 5).

On 30015 Machines—Replace the four J-type nuts along the rim of the front console with new clips.

1. Determine that all threaded holes are clean and in good condi-

tion by screwing a new bolt into each hole (if necessary, tap
out any damaged threads).

2. Position the bearing housing in the console.

3. Mount the gasket on the front of the bearing housing.

4. Determine that the shell is clean and free from any old gasket

material, then mount the shell onto the console using new
shell bolts (FIGURE 5).

5. Using drift pins, install the rear shell bolts first (FIGURE 1),

then tighten to draw the shell into place.

6. Install all other shell bolts and tighten evenly. Liberally apply

Dow Corning RTV 732 sealant over the inside shell bolts
and washers.

7. Mount the gasket and the new ring to the inside of the shell.

8. Install the front bearing mounting bolts through the ring and bearing housing, and tighten front bolts. Install

new alignment washers and original shims on rear mounting bolts (FIGURE 2). Replace the shims on rear
mounting bolts exactly as removed.

9. Tighten bolts. Insure there is approximately .0625 inch (1.6 mm) clearance between the alignment washers

and the console as shown in FIGURE 7. Add or subtract shims as required to obtain the specified clearance.
Weld the new alignment washers to the console.

10. Install all of the original lubrication fittings and connections to the new bearing housing.

11. Secure the level switch sensor hose using a new clip and self-locking nut.

On 30020 and 30022 Machines—Replace the four J-type nuts and determine that all threaded holes are clean

and in good condition.

1. Position the bearing housing in the console.

2. Mount the gasket, housing reinforcing plate, and second gasket.

3. Determine that the shell is clean and free from any old gasket material, then using new shell bolts (FIGURE

5), mount the shell onto the console.

4. Mount the gasket and ring to the inside of the shell.

5. Using Loctite 504, install the front bearing housing bolts and lockstraps through the ring and the bearing

housing. Tighten the bolts and bend the lockstraps as applicable.

6. Pre-position the two bearing support tap strips, then install the rear reinforcing plate. Install new alignment

washers and original shims on rear mounting bolts (FIGURE 6). Replace the shims on rear mounting
bolts exactly as removed.

7. Tighten bolts. Insure there is approximately .0625 inch (1.6 mm) clearance between the alignment washer and

the reinforcing plate as shown in FIGURE 7. Add or subtract shims as required to obtain specified clear-
ance. Weld the new alignment washers to the reinforcing plate.

8. Install all of the original lubrication fittings and connections to the new bearing housing.

9. Secure the level switch sensor hose.

FIGURE 5

(MSSM0708BE)

Shell Bolt

New alignment washer

Shims

FIGURE 6

(MSSM0708BE)

Installing New Alignment Washers

FIGURE 7

(MSSM0708BE)