3 Maintenance
3.4.2. Inspection of oil levels
3HAC022032-001 Revision: E100
© Copyright 2004-2008 ABB. All rights reserved.
Required equipment
Inspection, oil level axis 2-3
The procedure below details how to inspect the oil level of the gearbox unit, axes 2-3.
Inspection, oil level axis 4
The procedure below details how to inspect the oil level of the gearbox, axis 4.
Changing and draining gearbox oil may require handling hot oil of up to 90 °C! Make sure
that protective gear like goggles and gloves are always worn during this activity.
Also, be aware of possible pressure build up in gearbox! When opening the oil plug, there
may be pressure present in the gearbox, causing oil to spray from the opening!
When filling gearbox oil, do not mix different types of oil as this may cause severe damage
to the gearbox! Always use the type of oil specified by the manufacturer!
If the oils are mixed, the gearbox must be thoroughly rinsed! Contact ABB for further
instructions!
Equipment, etc.
Spare part
no.
Art. no. Note
Standard toolkit 3HAC
17594-1
The contents are defined in
section Standard toolkit on
page 264.
Other tools and
procedures may be
required. See references
to these procedures in the
step-by-step instructions
below.
These procedures include
references to the tools
required.
Action Note/Illustration
1. Remove the oil plug, filling. Shown in the figure Location
of oil plugs, axes 2 and 3 on
page 98.
2. Measure the oil level from the oil plug hole.
Required oil level: 225 mm ± 25 mm.
The oil must cover at least
half of the lower arm
bearing!
3. Fill or drain, if necessary. Type of oil is detailed in
section Oil in gearbox unit,
axis 1-2-3 on page 97.
4. Clean and refit the oil plug.
Action Info/Illustration
1. Move the upper arm to a horizontal position (calibra-
tion position).
2. Remove the upper oil plug, filling. Shown in the figure Location
of oil plugs, axis 4 on page
98.
Continued
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