Main Boom; Greasing The Piston Rod Of The Derricking Cylinder - Manitowoc Grove GMK 5250L Maintenance Manual

8.7
8.7.1
Grease, spare
parts and tools
S
H
Maintenance manual
GMK5250L

Main boom

Greasing the piston rod of the derricking cylinder

Designation
Lubricant RHUS SW 2; 1 kg
(Apply the grease with a brush)
or
Spray on Berulub; 0.5 litres
(spray-on)
– Brush.
Risk of damage to the derricking cylinder's gasket due to rust.
Ensure that the uncovered end of the piston rod is always kept covered with
a layer of grease. In this way you can avoid rust which damages the seal in
the derricking cylinder head when fully lowered.
You can hinder the formation of rust if you turn the main boom to the side
between maintenance intervals and completely lower it.
•
Clean the uncovered end (1) of the piston
rod by removing old grease, dirt particles
and rust.
•
Grease the uncovered end, making sure the
grease coating is evenly distributed.
After every high-pressure cleaning operation
on the truck crane
•
Grease the piston rod.
3 302 744 en
Maintenance work on the superstructure
GROVE part no.
03325215
01929824
8.7 Main boom
M 1
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