Yamaha YK250XGC Installation Manual page 53

Secure the robot main body firmly.
4
Secure the robot main body firmly with the four hex socket head bolts as shown in the Fig. below.
WhEn InSTallIng ThE RObOT, bE SURE TO USE ThE SPECIfIED SIzE anD qUanTITy Of bOlTS ThaT MaTCh ThE DEPTh
Of TaPPED hOlES In ThE InSTallaTIOn baSE, anD SECUREly TIghTEn ThE bOlTS TO ThE CORRECT TORqUE. If ThE
bOlTS aRE nOT TIghTEnED CORRECTly, ThE RObOT MIghT fall OvER DURIng OPERaTIOn CaUSIng a SERIOUS
aCCIDEnT.
Tightening torque
YK250XGC(P), YK350XGC(P), YK400XGC(P), YK500XGLC(P), YK600XGLC(P)
Depth of tapped holes in installation base:
Iron installation base
Aluminum installation base
Recommended bolt
Installing the robot
Robot Model
: Bolt diameter × 1.5 or more
Bolt diameter × 3.0 or more
: JIS B 1176 hex socket head bolt, or equivalent
Strength class JIS B 1051 12.9, or equivalent
Installation base
Bolts Used Tightening torque
M8 37Nm (380kgfcm)
Hex socket head bolt
2
23230-HM-00
2-5