Comer PGRF Series - Maintenance; Ordinary Maintenance; Extraordinary Maintenance; Malfunction and Anomalies

First issue 10/14 Release A10/14
PGRF 5/9
To guarantee long life and excellent performance to the gear unit, maintenance opera-
tions must be done on a regular basis.
Before maintenance operations, authorized people must disconnect the unit power supply,
putting it “out of order”, taking all the necessary precautions to ensure it cannot be restar-
ted accidentally or any of its moving parts.
During maintenance operations:
• it is forbidden to work with machines in movement,
• wear suitable protection (IPG),
• avoid accidental restart of the unit ,
• oil leaks should not be a source of danger,
• do not handle units that are still very hot.
ORDINARY MAINTENANCE includes:
• check of oil level and oil leaks,
• oil topping off,
• oil replacement,
• grease topping off,
• periodical inspection.
EXTRAORDINARY MAINTENANCE include:
• disassembly and reassembly;
• replacement of wearing or damaged parts;
• bearing replacement;
• oil seals replacement.
MALFUNCTION AND ANOMALIES
When malfunctions/anomalies are found:
• schedule an immediate/anticipated general overhaul;
• replace damaged or faulty components with new components if necessary.
MAINTENANCE
When
maintenance operations
arenished, restore all
safety conditions of
functioning
Note: Instruction for
extraordinary maintenance
are NOT described
in this manual
Note: described
maintenance intervals
could be different with
different machine duty
cycle
MAINTENANCE
INTERVALS
Inspection and Operations Intervals
Oil leakage
before functioning
Brake functioning before functioning
Oil and surface temperature on functioning
Noise and vibrations on functioning
FIRST OIL CHANGE only after initial 100 service hours
Oil level check every 500 service hours or monthly
Unit and plugs cleaning, oxidation, damage every 500 service hours
ORDINARY MAINTENANCE
every 2000 service hours or at least once a year
Oil replacement ordinary maintenance
Presence of water in the oil after oil draining
Brake test ordinary maintenance
Screws/plugs tightening torque ordinary maintenance
EXTRAORDINARY MAINTENANCE every 5000 service hours
Oil seals replacement extraordinary maintenance
Bearings replacement extraordinary maintenance
Brake disks and springs replacement extraordinary maintenance
ORDINARY MAINTENANCE
Maintenanceoperationsmustbecarriedoutbyqualied,trainedandauthorisedpersonnel