JLG 340AJ, Service And Maintenance Manual

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SECTION 5 - HYDRAULICS
3121259 – JLG Lift – 5-81
10. Install the gear block assembly.
Install the bearing block and gear assembly into the
body cavity. Align the assembly marks to ensure that the
gear block assembly is installed with the same orienta-
tion as before disassembly.
11. Clean the mating surfaces.
Remove any excess lubrication and grease from the mat-
ing surfaces of the pump body. Ensure that these sur-
faces are dry and free of contamination before moving
on to the next step.
12. Install the dowel pins.
Install four 5 mm dowel pins into the proper cavities on
both sides of the body (refer to the illustration below).
Swab the pins with assembly grease or petroleum jelly
to retain them during assembly.
Do not install dowel pins to the rear cover or flange, as
one of them may drop inside the pump during assem-
bly.