Lincoln Electric SVM134-A service manual DC Exciter Armature and Field Coils, Reassembly

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F-33 F-33

TROUBLESHOOTING & REPAIR

DC EXCITER ARMATURE AND FIELD COILS

REMOVAL AND REPLACEMENT (continued)

FIGURE F.12 – EXCITER COVER REMOVAL

	POLE PIECE BOLTS (4)
	EXITER FRAME
ARMATURE	BRUSH HOLDER
	ASSEMBLY (2)
SLEEVE COLLAR
FLAT WASHER
ARMATURE LOCKING NUT
EXITER COVER

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PROCEDURE

DC Exciter Armature Removal Procedure

1.Turn the engine OFF.

2.Using the 3/8” nut driver, remove the exciter cover. See Figure F.12.

3.Using the 3/8” wrench, remove the two brush holder assemblies. Note insulator placement for reassembly.

4.Bend the flat washer away from the armature locking nut.

5.Using the 1-5/8” socket wrench, remove the armature locking nut, washer, and sleeve col- lar.

6.Carefully remove the armature by sliding it from the shaft.

NOTE: The sleeve collar may have to be removed with a gear puller. Be careful not to damage the armature commutator.

Reassembly:

7.Upon reassembly, the armature locking nut should be torqued to 170 ft.-lbs. Install a new sleeve collar if necessary (Part number T5345). Bend the flat washer against the locking nut.

8.Install the brush holder assemblies. Note insulator placement.

9.Check the armature air gap. Minimum gap should be .025”.

10.Install the exciter cover.

CLASSIC I