Maintenance work on the carrier
7.12 Suspension
7 - 78 3 302 649 en Maintenance manual
GMK4090
07.12.2017
• 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).
Checking the
bleed overflow oil
collection tank
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).
• 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 or an authorised GROVE dealer.
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