SPXFLOW Colloid Mill - Sanitary Seal Replacement

15
95-03028
09/2019
Waukesha Cherry-Burrell
®
Brand Colloid Mill Maintenance
NOTE: Use care at all times to avoid chipping or scratching the seal
or seat. Keep the seal face areas clean and dry.
1. See Figure 29. Install the gland plate lip seal (18) into the rear
of the gland plate (17).
2. Apply a small amount of sealant to one end of each of the six
springs (19) and place them in the gland spring holes (17).
3. Install the gasket (16) to the sealing face of the gland plate
(17).
4. Attach the gland plate (17) to the mill body using the existing
capscrews.
5. Install one O-ring (24) into the groove in the mill body.
6. Attach the body to the bearing case (using 4 nuts).
7. Lubricate the O-ring (24) and small O.D. of the seal (20) with
a compatible lubricant. Install the seal into the mill, aligning
the notches on the seal with the pins in the gland plate.
NOTE: Avoid grease-type lubricants which can harden and bind
the seal; use food-grade lubricant when processing food products.
8. Lubricate the remaining O-ring (24) with a compatible lubri-
cant and install it on the small O.D. of the seat (21).
9. Install the seat (21) (with pins and O-ring) into the rear of the
rotor, aligning the pins with the holes in the rotor.
10. Install the rotor onto the shaft, being careful to avoid damage
to the seat (21) or seal (20). Tighten the rotor nut to 75 ft-lb
(102 N·m).
11. Complete the mill assembly. (Reverse steps 2 and 3 on page
13.)
Sanitary Seal Replacement
DP100-004
18
22
17
19
16
24
20
21
24
Figure 29
Item No. Description
16 Gland Gasket
17 Gland Plate
18 Gland Plate Lip Seal
19 Spring
20 Stationary Seal
21 Rotating Seat
22 Capscrew
24 Seal Seat & Body O-ring
NOTE: See page 20 for part numbers.
4. Clean and lubricate all parts thoroughly before reassembling.
NOTE: Do not unwrap the new bearings until ready to install.
5. Lubricate the inner races and press the new bearings onto the
shaft. Tighten the locknut on the front bearing to 40 ft-lb (54
N·m) (Figure 28).
6. Lubricate the outer races and press the shaft assembly into
the case. Replace the retaining ring and rear seal (Figure 24).
7. Replace the mill assemblies. Torque the rotor nut to 75 ft-lb
(102 N·m). Rell the crankcase with 2 quarts of Mobil DTE BB
oil.
Figure 28
Front bearing
Locknut