JLG 1850SJ Service And Maintenance Manual page 413

6. Remove bearing blocks and gears.
Place the pump on its side and carefully remove the
bearing block and gear set. To accomplish this, hold the
pump body and push with your fingers on the rear bear-
ing block.
Mark the relative positions of the gear mesh (drive gear
tooth to idler gear tooth) and the bearing blocks to the
body so they can be reas?sembled in the same position.
7. Remove pressure seals.
Check the seal quality. Replacement is recommended
whenever there are burrs, evidence of extrusion, or
marks caused by overheating. If the seals need to be
replaced, carefully remove them from the flange cover,
beginning with the backup ring and then the pressure
seal.
Do not use tools with sharp edges to remove the seals,
as damage to the cover can result.
After removal, dispose of damaged seals.
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SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS
8. Remove Outer O-Ring Seal
Check the quality of this seal. If necessary, replace it. Fol-
low the same removal recommenda?tions given in step
7.
After removal, discard the damaged seal.
Do not use tools with sharp edges to remove the seals,
as damage to the cover can result.
9. Remove the snap ring.
Place the flange on the work surface. Using internal snap
ring pliers, remove the snap ring.
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