Manitowoc GROVE GMK7450 User Manual

Maintenance work on the superstructure
8.11 Main boom
16.08.2018
Maintenance manual 3 302 577 en 8 - 85
GMK7450
8.11 Main boom
8.11.1 Grease 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.
• Repeat this procedure on the second der-
ricking cylinder.
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 2 AF; 1 kg
(Apply the grease with a brush)
03325215
or
Spray on Berulub; 0.5 litres
(spray-on spray)
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 laye
r of grease. In this way you can avoid rust which damages the gasket
in the derricking cylinder head when fully lowered.

Manitowoc GROVE GMK7450 Specifications

General

Brand	Manitowoc
Model	GROVE GMK7450
Category	Construction Equipment
Language	English