ABB IRB 1400, Product Manual

Page: 78 / 198

4 Repair
4.3.5 Dismantling the balancing springs
76 3HAC021111-001 Revision: B
4.3.5 Dismantling the balancing springs
See foldouts 1 and 2 in the list of spare parts.
Note! Not valid for IRB 1400H.
To dismantle 1. Place the lower arm in a vertical position.
2. Loosen the locking nut <1/76>.
3. Release the spring using tool 3HAB 1214-6 and undo screw <1/13> at the same
time.
If the tool 3HAB 1214-6 is not available, but there are two persons, then the spring can be
released manually.
4. Unscrew <2/65> in the upper bracket of the spring.
5. Remove the springs.
To assemble 1. Before installing new springs, make sure that the distance between the attach-
ment points is correct, see Figure . Lock the link heads using Loctite 242 or 243.
Distance between the Attachment Points.
2. Lubricate the link heads with grease.
3. Attach the springs to the top bracket using screws <2/65> and tighten to a torque
of 39 Nm ±10%.
4. Pull the springs down using tool 3HAB 1214-6 and attach screws <1/13>, together
with lifting lug <1/23> and washer <1/17>.
5. Attach the locking nut <1/76>.
Tightening torque Screws of upper bracket, position <65>:39 Nm ±10%.
C C 377