MAINTENANCE
44 | EN www.schmalz.com 30.30.01.00174/06
9 Maintenance
9.1 General notes
Please read section 1.6 (Requirements & instructions for installation,
maintenance and operating staff) before starting maintenance.
Risk of injury due to system maintenance by untrained personnel
This can result in serious injury.
The system must only be maintained by trained personnel who have read and
understood the operating instructions.
Risk of injury from worn, unmaintained parts
Worn and unmaintained parts can cause damage, resulting in failure of the
vacuum tube lifter and potentially causing severe injury.
Observe the operating, maintenance and servicing requirements specified in
these operating instructions.
9.2 Checking safety features
A non-return valve is built into the rotary union of the vacuum tube lifter JUMBO.
This prevents the working vacuum from falling too quickly in the event of a power failure.
Check this non-return valve at the start of every shift (if the unit is not operated continuously) or once a
week (if operated continuously). Be sure to remain outside of the danger zone during the check.
Rectify any faults before starting operations with the vacuum tube lifter JUMBO. If faults occur during
operation, switch off the vacuum tube lifter JUMBO immediately and rectify the faults.
Is the non-return valve leaking?
Procedure:
1. Switch on the vacuum tube lifter JUMBO.
2. Raise the load and do not press the actuating lever, thus setting it to the "Lift" position.
3. Switch off the vacuum tube lifter JUMBO. The vacuum tube lifter JUMBO should lower slowly, the
load cannot be released until it is close to the ground and must not fall suddenly.
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