Toshiba TVL Series Instruction Manual page 40

TRANSPORTATION AND INSTALLATION MANUAL
2 x 6.8 drilling,
Example of material: S45C
Fig. 3.9 Factory-set mechanical stopper (TVL500/TVL700)
2 x M6 drilling,
Fig. 3.10 Mechanical stopper location (at the base) (TVL500/TVL700)
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