Samsung MAX-VL85 Dokumentacja Pobierz pdf (Strona 12)

INSTALLATION AND MAINTENANCE

LSA 50.1 / LSA 51.2

ALTERNATORS

SERVICING - MAINTENANCE

Réf. 3281 en - 10.2007 / g

LEROY-SOMER

4.6.6 - Replacing the DE bearing on two-

bearing machines

- Remove the 6 screws (411) and 4 screws (62).

- Tap off the DE shield (410) from the stator (1.)

- Extract the ball bearing (60) with a puller.

- Fit the new bearing, after heating it by induction system to

80°C maximum.

WHEN DISMANTLING THE MACHINE, ALWAYS CHANGE

THE BEARINGS.

4.6.7 - Complete dismantling

- Remove the 6 screws (411).

- Support the DE rotor (4) with a strap.

- Remove the NDE shield (36) (section 4.6.5).

- Support the rotor with a tube on the NDE shaft extension.

- Push the rotor out of the stator, with care.

- If necessary, dismantle the coupling system and the DE

shield (410).

4.6.8 - Reassembling the bearings

- Place the "O" ring seal (349) and the preloading wavy

washer (79) in the bearing seat (36).

- Fit the NDE shield (36) and the DE shield (410) on the stator

(1).

- Tighten the 12 screws of the shield on the stator.

- Fit the inner bearing retainer with appropriate lubrication (68

and 78).

- Tighten the 4 screws on the bearing retainer (68 and 78).

- Refit and connect the diode bridge (section 4.6.5).

- Refit the air intake grille (47).

4.6.9 - Reassembling the rotor

See sections 4.6.7 and 4.6.8

If the rotor has been fully rewound, it must be

rebalanced.

After operational testing, replace all access panels or

covers.

4.7 - Installation and maintenance of

the PMG

The PMG reference for the 50.1/51.2 is PMG 4

4.7.1 - Mechanical characteristics and

assembly

The assembly consists of :

- an adaptation shaft (position the PMG on the alternator shaft

extension) (291)

- an M20 tie rod, with a cable gland washer and nut for

assembling the rotor (295 and 296)

- a rotor with 16 magnets (292)

- the stator assembly with leads (293)

- the PMG housing (290)

4.7.2 - Assembling the PMG

- Remove the air intake grille (47).

- Mount the rotor on the adaptation shaft.

- Mount the rotor assembly on the shaft (4) with the tie rod and

tighten the M20 nut.

- Mount the stator in the PMG housing and tighten the screws.

- Fit the stator assembly on the NDE shield (36).

- Tighten the PMG screws on the NDE shield.

- Connect the stator leads on the PMG.

- Fit the spacer for the air intake grille.

- Finally, fit the air intake grille (47).

Note : Check the air gap on the PMG.

Note : Ideally, the PMG should be fitted on a machine which

410

Ø120

Ø130

Ø230

LSA 50.1

Ø150

Ø160

Ø290

LSA 51.2

WARNINGWARNING

WARNING

293

292

291

295

296

290

299

298

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