Hyundai 35DS-7 Operation Manual page 30

(4) PIPING
Remove the bulk hoses and clamps
attached to the cylinder.
Remove the return hose from the down
control valve.
Put blind plugs in the piping immediately
after removing hoses.
This prevents the hydraulic oil from
flowing out and also prevents dust and
dirt from getting in.
(5) LIFT CYLINDER
Loosen and remove hexagon bolts and
washers securing lift cylinders to inner
mast.
Bind the lift cylinder with overhead hoist
rope and pull up so that the rope has no
slack or binding.
Make sure the lift cylinder be tightened
firmly for safety.
Loosen and remove hexagon bolts and
nuts securing lift cylinders to outer mast.
Using an overhead hoist, slowly raise the
inner mast high enough to clear lift
cylinder.
Using an overhead hoist, draw out lift
cylinder carefully and put down on the
work floor.
Bulk hose
Return hose
Clamp
LIft
cylinder
Hex bolt
Bracket
2-4
Lift cylinder
D357RE57
Hex bolt
Inner
mast
Outer
mast
D357RE58