Maintenance work on the carrier
7.12 Suspension
7 - 90 3 302 744 en Maintenance manual
GMK5250L
09.03.2018
• Check whether oil is visible in the centre of the inspection glass (1) on
each suspension 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 inspection 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 a 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
collected, then one or more suspension
struts are defective.
• Close the drain plug (5).
• Remove the cover (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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