The crane hydraulic system operates at oil pressures up to 3,100 psi (21,375 kPa). Never
disconnect any hydraulic line or fitting without first dropping the pressure to zero. Failure
to comply may result in serious injury or death to personnel.
Tag and mark hoses and tubes prior to removal.
Cap and plug hoses and tubes after removal.
Position drain pan under two hoses (1).
Disconnect two hoses (1) and remove preformed packings (2). Discard preformed packings.
Disconnect tube (3) from swing motor valve (4) and brake (5) and remove two preformed packings (6).
Discard preformed packings.
Remove four screws (7) and lockwashers (8) from swing motor valve (4). Discard lockwashers.
Remove swing motor valve (4) from motor (9).
Remove and discard two preformed packings (10) from motor (9).