Composite Bearing Installation - JLG 400S Service And Maintenance Manual

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NOTE: Install pin into the composite bearing dry. Lubrication is

not required with nickel plated pins and bearings.

Figure 5-31. Composite Bearing Installation

12. Inspect spacer for burrs and sharp edges. If necessary,

dress inside diameter surface with Scotch Brite or equiv-

13. If applicable, inspect port block fittings and holding

valve. Replace as necessary.

14. Inspect the oil ports for blockage or the presence of dirt

or other foreign material. Repair as necessary.

15. If applicable, inspect piston rings for cracks or other

damage. Replace as necessary.

SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS

NOTE: Prior to cylinder assembly, ensure that the proper cylinder

seal kit is used. See your JLG Parts Manual.

NOTE: Apply a light film of hydraulic oil to all components prior to

1. A special tool is used to install a new rod seal into the

applicable cylinder head groove.

Figure 5-32. Rod Seal Installation

WHEN INSTALLING NEW SEALS, ENSURE SEALS ARE INSTALLED PROPERLY.

IMPROPER SEAL INSTALLATION COULD RESULT IN CYLINDER LEAKAGE AND

IMPROPER CYLINDER OPERATION.

Figure 5-33. Cylinder Head Seal Installation

O-RING BACKUP RING

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