Cadillac 60 Series 1963 Shop Manual page 493

16-24
BODY
26. Door Vacuum Lock Remote
Control Valve Assembly
Removal and Installation
The remote control valve is attached below
right hand defroster duct with screws, Fig. 16-30.
The remote control valve is designed to supply
vacuum from storage tank to lock actuators when
door lock selector valve is actuated. All vacuum
hoses and their corresponding remote valve ports,
as shown in Fig. 16-30, are color-coded to assist
in proper hose to valve port installation.
1. Remove two screws securing remote control
valve assembly to cowl panel.
2. Carefully disconnect vacuum hoses from re-
mote control valve assembly, Fig. 16-30, and re-
move valve assembly from body.
The check valve maintains vacuum in the tank.
The storage tank then supplies vacuum at all
times to the remote v*alve and door lock selector
valves. The storage tank should provide a mini-
mum of three complete cycles of operation (lock
and unlock) immediately after the engine has been
shut off. The main vacuum supply hose is color-
coded red and connects the vacuum storage tank
with the remote control valve assembly, Fig.
16-31.
1. Raise hood; then carefully disconnect check
valve to manifold attaching hose from storage
tank, Fig. 16-31.
2. Carefully disconnect remote control valve
attaching hose from storage tank, Fig. 16-31.
3. Remove screws securing tank to power brake
mounting support and remove tank from body.
3. To install, replace parts in reverse se-
quence. Check operation of locking system prior
to installation of chassis parts.
27. Door Lock Vacuum Storage Tank
and Check Valve Assembly
Removal and Installation
The door lock vacuum storage tank is attached
to the front of the power brake mounting support
on left side of body, Fig. 16-31. The vacuum
storage tank is connected to the engine manifold
by a hose from the tank check valve to the
manifold.
Red
(To Remote
Control)
Check Valve
; Mounting Support
Storage Tank
Attaching Screws
Hose Connection
(Check Valve
To Manifold)
Fig. 16-31 Vacuum Storage Tank
4. To install, reverse removal procedure. With
engine running, check all operations of locking
system. Turn engine off: lock assemblies should
operate through a minimum of three complete
cycles (lock and unlock) before storage tank
vacuum supply is exhausted.
28. Vacuum Door Lock Trouble
Diagnosis Procedure
The vacuum locking system is designed so that
the storage tank supplies vacuum at all times to
the remote control valve and door lock selector
valves.
Vacuum is not introduced to the door lock actu-
ators or their attaching hoses until the door
selector valve is actuated.
Fig. 16-32 is a schematic diagram of the vac-
uum locking system and is intended as an aid when
trouble shooting the system.
IMPORTANT: The engine must be running
to provide the necessary vacuum for testing
locking system If a repair does not correct
the trouble, return parts to original position
before making another repair. Before checking
a specific part, be sure all attaching hoses are
in satisfactory condition and properly installed.
Test locks by actuating door lock selector valve.
Failure of locks to function properly is caused by
one or more of the following conditions listed in
the Vacuum Door Lock Diagnosis Chart.