Defect summary
A HYDRAULIC LEAK MAY DEVELOP IN THE WEBSTER COOLING FAN.
Consequence
IF A SEVERE HYDRAULIC LEAK OCCURS, HYDRAULIC FLUID CAN BESPRAYED ON THE ENGINE MANIFOLDS OR ACCUMULATE ON THE TURBOCHARGER AND INSULATIONAND THEN BE IGNITED BY THE HOT EXHAUST MANIFOLD, TURBOCHARGER, OR MUFFLER,RESULTING IN AN ENGINE COMPARTMENT FIRE.
Remedy
STEAM CLEAN THE ENGINE COMPARTMENT, RUN THE SYSTEM TO DETECT LEAKS, AND REPLACE ANY LEAKING WEBSTER COOLING FAN.
Notes
SYSTEM: HYDRAULIC SYSTEMS FOR STEERING AND TRANSMISSION.VEHICLE DESCRIPTION: 37 FOOT AND 40 FOOT MOTORHOMES ON A GILLIG ASSEMBLEDCHASSIS.
Source: NHTSA ODI recalls file, campaign 91V179000. Text as published by NHTSA.