Manitowoc GROVE GMK4090 Maintenance Manual page 160

Maintenance work on the carrier
7.12 Suspension
Checking the
bleed overflow oil
collection tank
7 - 78
•
Check whether oil is visible in the centre of the sight glass (1) on each sus-
pension strut.
If the oil level is too low
•
Open the connection (2) – oil escapes – and quickly connect the press with
the hose.
•
Inject oil until it reaches the middle of the sight glass.
•
Remove the hose and quickly close the connection (2).
•
Remove the cap (7).
•
Change the filter (6) if necessary and fasten the cover.
•
Defective suspension struts should be replaced as soon as possible by
Manitowoc Crane Care
All suspension struts (1) are connected to the
oil collection tank (3) by its bleed hose (2). The
oil collection tank (3) is accessible from below
through the opening (4).
•
Place an oil collection container under the
oil drain plug (5).
•
Open the drain plug (5) and allow the oil to
drain; normally this is a very small quantity.
•
If there is has been a large quantity of oil col-
lected, then one or more suspension struts
are defective.
•
Close the drain plug (5).
or an authorised GROVE dealer.
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GMK4090