JLG 40xxPS Operator Manual - Manual (Page 35)

Section 2 - Pre-Operation and Inspection
2-9 31200205
2.5 OPERATOR CAB
The telehandler is equipped with an enclosed ROPS/FOPS cab.
WARNING
CRUSH HAZARD. Never operate telehandler unless the overhead guard and cab
structure are in good condition. Any modification to this machine must be
approved by JLG to assure compliance with ROPS/FOPS certification for this
cab/machine configuration. If damaged, the CAB CANNOT BE REPAIRED. It
must be REPLACED.