New Holland T4.85 Service Manual page 75

Engine - Exhaust Gas Recirculation (EGR) - Diesel Particulate Filter (DPF) exhaust treatment
9. Fit the air cleaner (3) onto the hose (1) that connects
the air cleaner to the turbine. Then secure the hose to
the hood support with the relevant screws.
10. Tighten the clamp on the hose. Run the intake duct
(2) toward the filter. Then tighten it with the relevant
screws. Reconnect the connector to the clogged filter
sensor.
11. Re-assemble the side panels (2) and the bonnet (1),
see Hood - Install (90.100).
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