Manitowoc Grove GMK 4100L-1 - Greasing the Piston Rod of the Derricking Cylinder; Main Boom

Maintenance work on the superstructure
8.7 Main boom
25.11.2016
Maintenance manual 3 302 364 en 8 - 45
GMK 4100L-1
8.7 Main boom
8.7.1 Greasing the piston rod of the derricking cylinder
Grease, spare
parts and tools
–Brush.
• 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.
H
You can hinder the formation of rust if you turn the main boom to the side
between maintenance intervals and completely lower it.
M 1
Designation GROVE part no.
Lubricant RHUS SW 2; 1 kg
(Apply the grease with a brush)
03325215
or
Spray on Berulub; 0.5 litres
(spray-on)
01929824
S
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.