Chevrolet 30 Series 1967 Service Manual page 52

HEATER AND AIR CONDITIONING 1A-24
2. Remove the screws in the lower lip of the dash which
attach the control assembly bracket to the dash.
3. Move the unit toward the front of the vehicle and
lower it.
4. Disconnect the blower harness connector and illumi­
nating lamp sockets. Remove the blower switch and
mounting bracket.
5. Remove the control cables and transfer them to the
replacement control unit. Check them for adjust­
ment.
Installation
1. Attach the blower switch to the unit.
harness connector and illuminating lamps. Attach
the mounting bracket.
2. Lift the unit into position and attach it to the dash.
3. Connect the battery ground cable.
CONDENSER
10-30 Series
Removal
1. Purge the system of refrigerant.
2. Disconnect the refrigerant lines at the condenser and
cap them.
3. Remove the hood catch assembly. Remove lower
shroud mounting screws.
4. Remove radiator mounting bolts and push top of
radiator back enough to make lower condenser
mounting nuts accessible by reaching down between
radiator and radiator support.
5. Remove condenser attaching bolts and remove con­
denser (cap the condenser inlet and outlet if it is to
be reused).
Installation
1. Lower the replacement condenser into position and
Fig. 33 - Sight Glass Replacement
replace mounting bolts. Be certain shims are in­
stalled at lower condenser mount bolts.
Move radiator into place and replace mounting bolts.
2.
Replace shroud lower mounting screws.
3. Replace the hood catch assembly.
4. Connect the refrigerant lines, to the condenser using
new "O" ring seals.
5. Add one fluid ounce of refrigerant oil to the system
if a new condenser was installed.
and check performance.
40-60 Series
Connect the
Removal
1. Purge the refrigerant from the system.
Drain the radiator.
2.
3. Loosen the radiator hose clamps at the radiator
inlet and outlet and disconnect the hoses at the
radiator.
4. Remove the two upper radiator mounts.
5. Push the top of the fan shroud rearward and lift the
radiator out of the truck.
. Disconnect the condenser inlet and outlet fittings and
6
cap the open pipes. If the condenser is to be reused,
cap the inlet and outlet pipes.
7. Remove the screws which attach the lower frame of
the condenser to the lower mounting brackets.
. Remove the screws which attach the upper condenser
8
mounting brackets to the grille header bar and lift
the condenser out of the truck.
9. Remove the upper brackets from the condenser
frame if a new condenser will be installed.
Installation
1. Mount
(loosely) to the condenser frame.
Lower the condenser into position behind the grille.
2.
the upper condenser mounting
CHEVROLET TRUCK SERVICE MANUAL
Charge the system
brackets