Specifications

Service Training
Page 5
Section 4.8
SEALING THE H 50/60/70/80 LIFT CYLINDER
Condition: Cylinder removed
- Hold the cylinder at the 42 mm hexagon head (11).
- Slightly heat the cylinder head (3) in the area of the thread and unscrew from the cylinder barrel (8) with
a suitable socket spanner.
- Pull the piston rod (1) or (14) out of the barrel (8) and inspect for damage.
- Remove the cylinder head seals (3).
- Clean the cylinder head and install a new seal kit consisting of: O-ring (7), grooved ring (4) and wiper (2).
- Insert the piston rod into the cylinder barrel.
- Coat the cylinder head thread with Loctite No. 270 and screw it onto the clean thread of the cylinder barrel.
- Install the lift cylinder on the mast and eliminate any air in the cylinder when taking into operation.
REMARK: H 70/60 ONLY
The H 70/80 piston rod (14) consists of a barrel with a piston head (12) installed at the top end and made
into a single unit with the retaining ring (13).
If oil leaks at the top piston head (12), the lower piston head (15) is not tight and must be dismantled, cleaned
and re-installed using Loctite No. 243.