Alfa Laval Toftejorg TJ20G, Instruction Manual

Page: 17 / 34

Maintenance and Repair
(continued)
Remaining Assemblies
Disassembly
1. Remove Retainer spring (Pos. 6). Use small Screwdriver to lift Retainer spring out of groove in
Stem (Pos. 16). Lift off Retaining ring (Pos. 7).
2. Hold Body against table and unscrew Stem nut w. ball race (Pos. 9) with Caliper (tool No. TE369).
Withdraw Stem (Pos. 16) together with Ball retainer w. balls (Pos. 10).
3. Remove M5 Screws (Pos. 12) with a socket wrench (tool No. TE462A) and draw out Internal gear
(Pos. 13).
4. Insert a 13 mm spanner (tool No. TE81B041) into Body, hold Cap nut (Pos. 23) and by hand
screw off Hub cover (Pos. 19), and remove Washer (Pos. 22).
5. Hold Body against table and unscrew Hub nut w. ball race (Pos. 18) with Caliper (tool No. TE369).
Note
: Left-hand thread
Withdraw Hub (Pos. 17) together with Ball retainer w. balls (Pos. 10).
6. With screwdriver lift Slide bearing (Pos. 14) and Bearing for Turbine shaft top (Pos. 24) out of
Body.
7. Unscrew Nozzles (Pos. 21) with 11 mm spanner (tool No. TE81B041). Be careful not to damage
Nozzle vanes (Pos. 20) as this will severely reduce Nozzle performance. Nozzle vanes should not
be removed unless they need to be replaced.
If Ball races (Pos. 16.2 and 17.2) on Stem and Hub as well as Stem/Hub nut w. Ball race (Pos. 9 and
18) are heavily worn, they should be replaced as well as Ball retainer w. balls (Pos. 10), see page 19.
Page 16 Instruction Manual, Toftejorg TJ20G
IM-TE91A600-EN2
ï
Return to menu