JLG 1200SJP Service Maintenance Manual page 315

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10. Remove the shaft (2). It may be necessary to strike the

threaded end of the shaft with a rubber mallet.

11. Before removing the piston (3), mark the housing (1)

ring gear in relation to the piston O.D. gear. There should

now be timing marks on the housing (1) ring gear, the

piston (3) and the shaft (2).

12. To remove the piston (3) use a rubber mallet and a plas-

tic mandrel so the piston is not damaged.

13. At the point when the piston gear teeth come out of

engagement with the housing gear teeth, mark the pis-

ton and housing with a marker as shown.

14. Remove the o-ring (204) and backup ring (207) from end

cap (4) and set aside for inspection.

15. Remove the wear guides (302) from the end cap (4) and

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SECTION 4 - BOOM & PLATFORM

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