PREVOST H3-41 Maintenance Manual page 155

After all the frame sections have been
reassembled, check for conductivity between
CAC/radiator core and frame (min 100 000
ohms must be observed).
36. Open rear engine compartment door.
37. Open rear engine door and set engine stop
button to the OFF position (push).
38. Raise L.H. side hinged rear fender.
FIGURE 42: RAISING REAR FENDER
39. Remove access panel located behind L.H
tag axle wheel.
40. Access the heater shut-off valve located
behind the access panel and set it to the
closed position.
41. Set the second heater shut-off valve, located
in the engine compartment below the
turbocharger outlet to CAC pipe, at the
closed position.
FIGURE 43: HEATER SHUT-OFF VALVES POSITION
42. Connect coolant extractor to the radiator
drain cock and drain the coolant system as
per Draining cooling system in paragraph 7
of this section.
PA1621 Maintenance Manual All Series
SECTION 05: COOLING SYSTEM
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Section 05 revised Feb 2019
35