Lincoln Electric LN-8 SVM132-A Manuel d'utilisateur télécharger pdf (Page 44)

D-2

MAINTENANCE

D-2

ROUTINE MAINTENANCE

DRIVE ROLLS AND GUIDE TUBES

After feeding every coil of wire, inspect the drive roll

section. Clean the assembly as necessary. Do not use

solvent to clean the drive roll assembly as it may wash

the lubricant out of the bearings. The drive rolls and

guide tubes are stamped with the wire sizes they will

feed. If a wire size other than that stamped on the rolls

is to be used, the rolls and guide tubes must be

changed.

The drive rolls for 0.068 and 0.120 in. (1.7 thru

3.0 mm) wire have a double set of teeth so they can

be reversed for additional life. Between the two

knurled rolls is a shim washer which limits the damage

to the electrode if wire feeding problems occur. Drive

rolls for 1/16 in. (1.6 mm) and smaller wire have no

teeth and are not reversible.

Refer to the instructions included with the drive roll kit

for installation and replacement of the drive rolls on

the wire feeder.

WIRE REEL MOUNTING

To prolong the life of the reel shaft on the 50 to 60 lb

coils, periodically coat it with a thin layer of grease. No

maintenance to the two position brake is required. If

the brake shoe wears through to metal, replace the

brake assembly.

PERIODIC MAINTENANCE

CONTROL BOX

Every six months, open and inspect the control sec-

tion. The accumulated dirt should be gently blown off

all the electrical components. Be sure the air that is

used is dry. Check all relay contacts.

WIRE DRIVE MOTOR AND GEARBOX

Every year, inspect the gearbox and coat the gear

teeth with a moly-disulfide filled grease. Do not

use

graphite grease.

Every six months, check the motor brushes. Replace

them if they are less than 1/4 in. (6.4 mm) long.

GUN AND CABLE MAINTENANCE

For instructions on periodic maintenance for the weld-

ing gun and cables, refer to the manual for your spe-

cific model of welding gun.

LN-8

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Lincoln Electric LN-8 SVM132-A Manuel d'utilisateur Page 44

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