Assembly - JLG 1850SJ Service And Maintenance Manual

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Table of Contents

Inspect the housing to ensure that it is clean and free of for-

eign material. Inspect the swashplate bearing surfaces, and

endcap mating surfaces.

SHAFT BEARING KITS

The tapered roller bearing kit consists of a cup and cone. Make

sure the cup and cone are free of excessive wear or contamina-

tion. Rotate the bearings to check for smoothness. If a contam-

inated bearing is suspected, clean with a solvent and lubricate

with hydraulic fluid.

NOTE: Replace the bearing if the problem is not remedied by

Inspect for uneven wear. If abnormal wear is found, replace the

bearing kit.

Assembly

1. Coat the journal bearings (B030) with hydraulic fluid and

install them into the pump housing. Punch in retaining

pins (B071) a minimum of 0.5 mm [0.002 in] below the

bearing surface.

SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS

NOTE: If journal bearings are reused, reinstall them in their origi-

nal orientation and position.

2. Reinstall shaft bearing cup (B060) and cone (B070).

Before replacing the bias spring (B025), coat the curved

surface of the swashplate with hydraulic fluid.