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Check the hydraulic system for leakage: During maintenance both the rods and pistons should be inspected
for leakage (see section 1.1). W hilst with upright installation it is easy to identify a leak in the rod from above
the cylinder head, a leak in the piston is assessed by oil dripping from the extension bolts, which are screwed
into the piston. If there is the slightest leak here, the loss of oil can be assessed by the resulting
displacement of the piston rod which is under pressure. If this is minor, i.e., the connections are still in the
mid nominal position, and the maintenance intervals are not too far apart, then the sealings can be replaced
during the next maintenance check. If there is a distinct leakage the unit will have to be sent to the factory to
be repaired.
NOTE:
A slight wetting with hydraulic oil in the region underneath the block (–> tappet for slack rope rocker unit)
may stem from installation as the pistons are dabbed with oil to make them easier to install.
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Check for mechanical damage to the eyebolts designed as piston rods (–> damage to surface can lead to
leakage due to damage to the override of rod sealings in the cylinder head!
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Check for possible foreign bodies or contamination on the unit. The unit (primarily the eyebolts designed as
piston rods) should be cleaned of any contamination. Foreign bodies can moreover block the function of the
optional slack rope rocker!
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Check for possible corrosion: Should the unit be exposed to extreme weather conditions, then it should be
inspected for possible corrosion effects. This also affects the attachment on the load carrier. If corrosion
effects are visible, please adopt the appropriate measures.
If there is slight corrosion of non-moving parts: clean the parts and apply a suitable protective paint or
corrosion spray. Movable parts should be inspected to determine whether slight corrosion can restrict
function or if it is possible to polish the surface. In this case only a suitable, resin-free anticorrosive product
may be applied. If the corrosion is severe, then the unit must be sent back to the manufacturer for service or
repair.
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A manual function test of the optional rocker switch (–> ease of movement, resilience) should be conducted.
A suitable (resin-free!) lubricant can be sprayed onto the bearings to maintain the ease of movement of the
rocker bearing, which is actually designed to be maintenance-free.
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Function test of the optional pressure switch. If the corresponding weight is available to achieve the set
overload, the switching function of the pressure switch, fitted to detect the overload or load status, can be
inspected. The system should always be tested on initial installation. If this is not so, the pressure level
shown on the display unit can be compared with the original level with the same load status.
Dokum ent: as-gb-002_balance_betr_u_m ontageanleitung_dez2017.wpd
Beschreibung/Inbetriebnahme/Wartung
Descrition/Installation/Maintenance
Revision: 23.12.2017
AS-GB-002/...
"balance"
Seite / Page 24 von / of 25
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