Chevrolet 10 Series 1970 Service Manual page 35

F ig . 8 —T ilt Cab Heat C a b le Access Plate
13. R em ove the inner plate with core attached from the
co re case (pry the
n ecessa ry).
14. R em ove the co re tube bracket and core retaining
screw s.
15. Separate the co re and plate.
16. R em ove th erm ostatic va lve c ap illary tube fro m the
co re by withdrawing the p lastic retaining pin.
17. R em ove screw s attaching therm ostatic valve to core
and rem o ve va lve assem bly.
Installation
1. A ssem b le th erm ostatic va lve assem bly to core.
2. Attach the th erm ostatic valve c a p illa ry tube to the
co re with the p la stic pin.
inches away fro m the edge of the core (valve sid e),
and 2-1/2 inches back fro m the front edge of the core
(fig . 9). B e fo re pinning the co il, bend the straight
section of tube in a gentle a rc which w ill hold the
coiled end away fro m the core while unpinned.
w ill preven t the tube from rattling against the core.
3. Mount the core to its retaining plate and mount the
co re tube bracket.
4. A ssem b le the core retaining plate and core to the
co re housing. "Shoehorn" the plate under the lip of
the housing i f n ecessary.
5. Attach the top co ver of the core case.
6. Connect the tem perature door cable and check its
adjustment. Secure
plate.
7. L ift the heater assem bly to the cowl panel and push
the mounting stud and core tubes into place.
8. In stall the screw s retaining the core case to cowl at
the a ir inlet. In stall the lo w e r le ft and right co re
case bracket screw s.
mounting screw .
9. Connect the blow er m otor w ire at the m otor flange
term in al.
10. Replace d e fro s te r hoses.
11. Attach the a ir and d e fro s te r door cables and check
adjustment.
plate at the retaining lip if
Locate the pin 6-1/2
the tem perature cable access
Install the a ir distribu tor
F ig . 9—T ilt Cab Th erm ostatic V a lv e C a p illa r y
12. A t the fron t of the cab, tighten the sheet m etal nut
to the core case stud.
13. Connect the rubber elbows to the core tubes and
clamp secu rely.
14. Replace a ir intake g r ille .
15. R e fill cooling system .
16. Connect battery ground cable.
AIR DISTRIBUTOR DUCT ASSEMBLY
All Models
F igu re 10 (Deluxe A ir ) and F igu re 7 (T ilt Cab) illu s ­
tra te the a ir distribu tor duct installation.
This
F ig . 10— D e luxe A ir H eater D is trib u to r and Ducts
HEATER AND AIR CONDITIONING 1A-5
CHEVROLET TRUCK SERVICE MANUAL