Chevrolet 10 Series 1968, Руководство по обслуживанию

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HEATER AND AIR CONDITIONING 1A-6
Fig . 11—T ilt Cab Heater Assembly
5. Unclip the blower motor wire at the motor flange
terminal.
6. Disconnect the defroster and air door control cables
at the distributor duct.
7. Remove distributor duct mounting screws.
8. Remove defroster hoses from distributor duct.
9. Remove core tube grommet from the floor pan and
slide it up the core tubes.
10. Remove screws attaching heater case to toe pan.
11. Pull case away from toe pan and lower by sliding
core tubes further down through the toe pan. When
case is clear of the ash tray retainer and dash lower
edge, pull it toward the rear and withdraw the core
tubes from the toe pan hole.
12. Remove the temperature door cable.
F ig . 12—T ilt Cab Heat C ab le Access Plate
13. Remove the screws attaching the core retainers to
the case and remove the core.
Installation
1. Replace the core in the case using a non-hardening
sealer. Attach the core retainers and screws.
2. Attach the temperature door cable and operate the
temperature control to check adjustment.
3. Insert the core tubes through the toe pan hole, move
the heater assembly forward under the dash, and lift
the assembly to the mounting position.
4. Replace heater case and distributor mounting screws
and tighten.
5. Replace the core tube grommet in the toe pan.
6. Attach the defroster hoses to the distributor duct.
7. Connect the defroster and air door cables and check
adjustment.
8. Connect the motor wire.
9. Replace the glove box.
10. Connect heater hoses below the toe pan.
11. Refill the Cooling System.
12. Connect the battery ground cable.
Tilt Cab
Rem oval (Fig. 11)
1. Disconnect battery ground cable.
2. Drain radiator.
3. Remove exterior air intake grille panel below
windshield.
4. Loosen the clamp at the top of each rubber elbow
and pull the elbows off the core tubes.
5. Remove the sheet metal nut from the stud next to the
core tube elbows.
6. Disconnect the air and defroster door cables.
7. Remove defroster hoses from the distributor duct.
8. Unclip the blower motor wire from the motor flange
terminal.
9. Remove air distributor bracket mounting screw at
left of distributor. Remove mounting screws at low­
er left and right of core case.
Remove screws attaching core case air inlet to
cowl at top of core case (three screws at the top and
one at each side). Pull the heater assembly away
from the cowl panel.
10. Open the temperature cable access plate at the top
left of the core case and disconnect the cable (fig.
1 2 ).
11. Remove the top cover of the core case.
12. Remove screws which attach the inner core retaining
plate to the core case (not the screws at the core
corners).
13. Remove the inner plate with core attached from the
core case (pry the plate at the retaining lip if
necessary).
14. Remove the core tube bracket and core retaining
screws.
15. Separate the core and plate.
16. Remove thermostatic valve capillary tube from the
core by withdrawing the plastic retaining pin.
17. Remove screws attaching thermostatic valve to core
and remove valve assembly.
Installation
1. Assemble thermostatic valve assembly to core.
2. Attach the thermostatic valve capillary tube to the
core with the plastic pin. Locate the pin 6-1/2
CHEVROLET TRUCK SERVICE MANUAL