OPERATOR CAB (ROPS/TOPS) (CONT’D) Figure OI-29 Heating and Ventilation There are two HVAC ducts that the operator can choose to install. 1 Figure OI-27 1 1 P-42587 Remove the screw (Item 1) and pull straight up to remove the duct (Item 2) [Figure OI-29] . Figure OI-30 P-42587 The small duct (Item 1) [Figure OI-27] is standard for heater use. 1 NOTE: The air conditioner duct can be ordered and used on heater models. 2 Figure OI-28 3 1 P-42588 Place the air conditioning duct (Item 1) on the housing and over the locking stud (Item 2) [Figure OI-30] . Install the screw (Item 3) [Figure OI-30] . Figure OI-31 P-42588 The large duct (Item 1) [Figure OI-28] is optional. NOTE:
This duct can be removed for improved operator visibility. 1 P-42590 Fully seat the duct and rotate the lock (Item 1) [Figure OI-31] . 325/328 Excavator 13 Operation and Maintenance Manual