1 Safety1.3.5. WARNING - Safety risks during work with gearbox oil373HAC022031-001 Revision: C© Copyright 2004-2008 ABB. All rights reserved.1.3.5. WARNING - Safety risks during work with gearbox oilDescriptionWhen handling the gearbox oil, there are several dangers to both personal injuries and productdamages! Following safety information must be regarded before performing any work withthe oil in the gearboxes!Warnings and eliminationWarning Description Elimination / Action-Hot oil!Changing and draininggearbox oil may requirehandling hot oil of up to 90 °C!Make sure that protective gearlike goggles and gloves arealways worn during this activity.-Possible pressure buildup in gearbox!When opening the oil plug,there may be pressure presentin the gearbox, causing oil tospray from the opening!Open oil plug carefully and keepaway from the opening. Do notoverfill the gearbox when filling.-Do not overfill!Overfilling of gearbox oil canlead to internal over-pressureinside the gearbox which inturn may:• damage seals andgaskets• completely press outseals and gaskets• prevent the robot frommoving freely.Make sure not to overfill thegearbox when filling with oil!After filling, check the correct oillevel.-Do not mix types of oil!Mixing types of oil may causesevere damage to thegearbox!When filling gearbox oil, do notmix different types of oil unlessspecified in the instruction.Always use the type of oilspecified by the manufacturer!-Heat up the oil!Warm oil drains quicker thancold oil.When changing gearbox oil, firstrun the robot for a time to heatup the oil.-Specified amountdepends on drainedvolume!The specified amount of oil isbased on the total volume ofthe gearbox. When changingthe oil, the amount of refilled oilmay differ from the specifiedamount, depending on howmuch oil has previously beendrained from the gearbox.After refilling, check the oil level.
