Pressure Accumulator - Checking The Gas Pressure - Manitowoc Grove GMK 5250L Maintenance Manual

8.7.4
G
Prerequisites
Maintenance manual
GMK5250L
Pressure accumulator – checking the gas pressure
Risk of accidents due to incorrect inspection
The gas pressure test must be carried out only by an authorised official
inspector of pressure tanks or under his/her supervision or instructions.
•
Consult the Chapter:
•
Familiarise yourself with the slinging points for personal safety
equipment on the GMK5250L truck crane;
– The truck crane must be level.
– The hook block must be unreeved.
– The main boom must be completely retracted and lowered into horizontal
position.
– A rigging mode must be created with a telescope status which satisfies
the lifting capacity table necessary for maintenance;
table ; Section Telescoping sequences for lubricating the boom.
– The RCL code for the current rigging mode must be entered.
– Personal safety equipment to secure you from falling is used;
à
Operating manual .
The pressure accumulator (1) is located on the
telescoping cylinder.
The filling pressure at 20 °C (68 °F) is 95 bar
(1377 psi).
•
Have the filling pressure checked and if
necessary corrected by
Manitowoc Crane Care
GROVE dealer.
à
Lubricating the telescopic sections , p. 8 - 48.
3 302 744 en
Maintenance work on the superstructure
or an authorised
à
Operating manual .
à
Lifting capacity
8.7 Main boom
M 6
s
8 - 53