Assembling The Heater Unit; Fitting The Heater Unit; Removing The Heater Unit Controls - Volvo 164, 1970 Service Manual

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Fig.
8-35.
Fan motor
Assembling the
heater
unit
VO
LVO
103291
Scrape
off the
previous sealing agent and replace
it
with a suitably soft sealing agent. Replace
the
cell
system with sensitive body and reassemble the casing
halves.
Replace the spring
clips
and the rubber
bush-
ings.
Fitting
the heater unit
Place tf,e heater unit in position and connect the
draining hose. Fit the four screws which hold the
heater to the brockets. Connect the ground cables to
the right-hand brocket. Fit the controi valve and the
upper hose to the heater. Fit the fusebox to the
heater. Connect the cables from the fan motor to the
switch and mount the switch in the dashboard. Fit the
controi wires to the shutters and controi valve. Fit
the defroster hoses and replace the mat on the trans-
mission
tunnel. Fasten
the panel in position below the
8:
20
dashboard.
Fit
the hoses to the controi valve.
Con-
ned
the
ground battery eable and refil the eoolant
system.
Removing the heater unit controJs
The controls are
of unitory
design as shown
in
Fig
.
8-36. The
unit is
fixed to the dashboard with three
nuts.
For removal, first
loosen
the panel below the
dashboard
.
Next
loosen
the wires on the
heater unit
and controi valve. Removal
of
the
controi lighting
lamps is
earried out by pulling them straight
out
from
the
holders.
Remove the three
nuts
and take out the
controi unit.
Fig.
8-36.
Heater
unit
controls
1.
Heat controi valve
4.
Heat control, floor
2. Heater controi
5. Hoses to defroster nozzles
3.
Defroster controi

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