Maintenance and repair 65/84
3 842 564 989/2022-06, MIT: HQ 2/G-H, BS 2/G-250,
Bosch Rexroth AG
CAUTION
Chain tensioner under extreme tension!
Risk of crushing due to unintentionally loosening the fastening bolts.
Make sure the chain tensioner remains tensioned during assembly and cannot
loosen unintentionally.
Fig. 41:
SW3
4
5
5
SW4
4
SW4
M
D
=18 Nm
6
3
3
SW4
M
D
=5 Nm
564 988-65
5
5
M
D
=2,5 Nm
HQ 2/G-H, BS 2/G-250
Slackening the duplex chain (using HQ 2/G-H as an example, shown without lift unit)
4.
Loosen the chain
tensioners.
5.
Slacken the chain as
much as possible.
6.
Re-tighten the chain
tensioners.
EN
GLISH