PREVOST H3-41 Maintenance Manual page 158

SECTION 05: COOLING SYSTEM
51. Support the cooling assembly with a lift table
positioned under the lower support.
52. Unscrew the lower support from the vehicle
(two hex bolts at each end of the support).
FIGURE 51: LOWER SUPPORT MOUNTING BOLTS
53. Unscrew the two upper supports from the
vehicle structure so they will be removed
with the cooling assembly.
FIGURE 52: UPPER SUPPORTS MOUNTING BOLTS
54. Slightly lift the assembly and slide it out of
the vehicles.
Check interference at the back of the
•
assembly with the pipe sections still
attached to the assembly and the vehicle
structure (slack hose clamps and turn
down tubes as necessary).
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PA1621 Maintenance Manual All Series
55. To proceed to the radiator replacement,
remove radiator upper pipe section, bracket
and hardware, unbolt the four support bolts
passing through the radiator and holding it to
the frame (upper & lower) also unbolt the
cooling pack frame upper and lateral
sections and slide the old radiator out.
FIGURE 53: COOLING PACK PARTS TO BE REMOVED
FOR RADIATOR REPLACEMENT
56. Insert a new radiator in the lower support
making sure that insulating foam is installed
all around the radiator body.
57. Reinstall the four support bolts and the
upper and lateral frame sections only (go to
step 59 below) Torque all support bolts and
frame bolts to specified torque below.
58. To proceed to the complete cooling pack
replacement, ignore steps 55 to 57 above
and remove and transfer to the new
assembly:
Both upper supports & brackets
•
Lower support & rubber mounts
•
Shroud support bracket
•
Lower hinge & hinge bracket
•
Torque all brackets to specified torque.
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Section 05 revised Feb 2019
TORQUE: 9 lb-ft (12 Nm)
TORQUE: 9 lb-ft (12 Nm)