Instruction Manual

2. Thread a 10 mm eye bolt into the tapped hole

provided in the seal chamber (184) and sling to a

hoist (Fig. 30).

3. Remove the two (2) hex head bolts (370B) from the

seal chamber (184) (Fig. 30).

4. Gently tap the seal chamber (184) with cartridge seal

and mixer sleeve from the frame (228) using a soft

blow hammer on the dry side of the cover (Fig. 30).

5. Remove the four (4) hex nuts (355) and washers

(354) from the seal gland plate.

6. Loosen the set screws on the seal drive collar and

slide the mixer sleeve (126) out of the seal.

7. Service per the seal manufacturer’s instructions.

! WARNING

Seal chambers are heavy. Use proper support to

avoid personal injury.

DISASSEMBLY OF BEARING

FRAME

1. Secure bearing frame assembly firmly to a work

bench.

2. Remove coupling hub from shaft (122) by loosening

set screw (if provided) and using a puller (Fig. 31).

3. Remove shaft key (400) (Fig. 31).

4. Remove coupling guard end plate by removing

bearing housing adjuster screws (370C) (Fig. 31).

5. Remove labyrinth shaft seal assemblies (332A,

333A) from each end of frame (Fig. 31).

6. Slide rotating element out of frame (228). If needed,

tap rotor end of shaft with a soft blow hammer to

assist in removal (Fig. 32).

! WARNING

Support both ends of shaft to prevent rotating

element from dropping when bearings are disen-

gaged from bores.

7. Radial end cover (109A) is installed permanently at

factory and should not require removal.

8. Remove thrust bearing retainer ring (253B) by

removing socket head cap screws (236A) (Fig. 33).

9. Slide thrust bearing housing (134A) off thrust

bearings (112) (Fig. 33).

3501 IOM 11/10 33

Fig. 30

Fig. 31

Fig. 32

Fig. 33