Coolant Filter Housing Shut-Off Valve - Spindle Servicing - PREVOST H3-41 Maintenance Manual

SECTION 05: COOLING SYSTEM
NOTE
For additional information concerning Volvo
D13 engine components or engine-related
components, consult Volvo Trucks Canada or
Volvo Trucks North America Web site under:
Parts & Service. On Volvo web site, you will
find detailed service procedures for parts
replacement, repair and maintenance.
3.2 COOLANT FILTER HOUSING SHUT-
OFF VALVE – SPINDLE SERVICING
Seizing of the spindle in the coolant filter housing
(Figure 4) could prevent proper operation of the
valve. With proper cleaning, the application of a
silicone-based lubricant to the groove in the
spindle, and cycling the valve at regular intervals
will prevent the buildup of corrosion in the
coolant filter housing. Follow this spindle
servicing and repair procedure.
FIGURE 4: COOLANT FILTER HOUSING
1. Park the vehicle on a level surface. Apply the
parking brake and place the transmission in
neutral.
2. Turn the ignition switch to the OFF position.
3. On the engine compartment rear start panel
(Figure 5), push the engine stop/ignition
interlock button to prevent the engine from
being started.
FIGURE 5: REAR START PANEL
10
PA1621 Maintenance Manual All Series
4. Drain the coolant from the engine. Refer to
DRAINING
section.
Shut-off valve corrosion repair procedure
5. Place a spill container under the engine
coolant filter housing.
6. Loosen the M5 hex socket screw (1) in the
coolant filter housing (3) until it clears the
groove in the spindle (2) (Figure 6).
Note: This is the groove the M5 hex socket
screw sets in when the coolant filter hosing is
fully assembled.
FIGURE 6: M5 HEX SOCKET SCREW
7. Extract the spindle (2) from the coolant filter
housing (3).
FIGURE 7: SPINDLE
|
Section 05 revised Feb 2019
COOLING SYSTEM in this