Manitowoc Grove GMK 5250L Maintenance Manual

Maintenance work on the superstructure
8.7 Main boom
09.03.2018
Maintenance manual 3 302 744 en 8 - 47
GMK5250L
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.

Manitowoc Grove GMK 5250L Specifications

General

Brand	Manitowoc
Model	Grove GMK 5250L
Category	Construction Equipment
Language	English