Disassembly/Assembly
Guidelines
IRB 6400
Page 4 - 19
Maintenance
Adjusting Axis 5 Gear Play
The following conditions are to exist before play is adjusted:
• Oil drained from gear case (W8)
• Gear case cover (W68) and gasket (W67) removed.
• Axis 5 motor (W52) brake engaged holding axis 5 from turning.
• Intermediate gear wedges (W64) removed, along with spring washers
(W65) and hex nuts (W66).
• Intermediate gear hub (W38) center mounting screw (W48) loosened.
• Tool ABB# 6896 134-CE mounted.
• Dial indicator with magnetic base mounted.
Adjusting play between intermediate gear and pinion gear :
• Shift the intermediate gear hub (W38) to obtain a play 0.00-0.08 mm
between the intermediate gear (W41) and the pinion (W76). Measure the
play at three different places.
• Tighten the intermediate gear hub (W38) with the center screw (W48) and
torque to 70 ft-lb.
• Install wedges (W64).
• Install spring washers (W65). Concave surfaces face each other.
• Install hex nuts (W66) using Loctite 242. Torque 9 ft-lb.
• Recheck play and readjust, if necessary.
REFERENCE DRAWINGS
Exploded View:
3HAA 0001-GX (pg 13-18)
Assemblies:
“W” (pg 12-5)
3HAA 0001-GX (pg 13-21)
REQUIRED TOOLS
ABB #6896 134-CE
Torque Wrench (9-70 ft-lb)
Loctite 242
Dial Indicator
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