
ELECTRICAL-BODY AND CHASSIS 12-6
\ \
CHEVROLET 
CHEVELLE
CHEVY II 
CAMARO
Fig.
 10 - Headlamp Assemblies (Exc. Corvette)
1.
2.
 Remove two bolts retaining housing assembly in Corvette (Fig. 12)
bumper and remove housing.
3.
 Remove lens retaining screws, lens and bulb from
housing assembly and transfer to new housing unit.
4.
 Connect lamp wiring assembly to harness assembly,
housing and check operation of lamp.
5. Position lamp assembly in place and.install retaining
bolts.
Camaro (Fig. 10)
1.
 Raise hood.
2.
 Disconnect wiring harness at rear of lamp socket.
3.
 Remove attaching nut and disconnect ground wire at
sheet metal connection.
4.
 Remove retaining nuts and housing from grille
opening.
5. Transfer lens and bulb to new unit.
6. To install, position lamp housing to grille opening
and install retaining nuts.
7. Connect ground wire to attaching point and install
retaining nut.
8. Connect wiring harness to lamp socket and check
operation of lamp. 
Raise hood and disconnect harness connector from
lamp unit skirt-mounted
 connector;
 then
 remove'lamp
unit connector from underside of skirt.
Working at the forward portion of the wheel well, re-
move the two lamp assembly retaining nuts and re-
move the lamp assembly and support from the
vehicle.
Route the lamp assembly lead wires through fender
cutout and position support over lead wires.
Position lamp unit studs through support and install
retaining nuts, making sure that the studs are
horizontal.
Connect harness to lamp unit skirt-mounted connec-
tor and close vehicle hood.
FENDER LAMP SERVICE (Fig. 11)
Chevrolet 16600 Models
1.
 Disconnect parking lamp wiring from forward har-
ness connector.
CHEVROLET CHASSIS SERVICE MANUAL 

ELECTRICAL-BODY
 AND
 CHASSIS
 12-36
CAMARO INSTRUMENTS AND GAUGES
INDEX
Page
General Description
 12-36
Service Operations
 12-36
Instrument Cluster
 . . . 12-36
Instrument Lamps
 12-36
Printed Circuit
 12-36
Fuel Gauge
 12-37
Tachometer
 . . 12-37
Seat Separator Instrument Console
 12-37 
Page
Fuel Gauge
 12-37
Ammeter
 12-37
Temperature Gauge
 12-37
Oil Pressure Gauge
 . 12-37
Fuel Warning Unit
 12-37
Clock.
 ... 12-37
Oil Pressure Indicator
 12-37
Generator Indicator
 12-38
Temperature Indicator
 12-38
GENERAL DESCRIPTION
The standard Camaro instrument cluster assembly con-
sists
 of two
 circular units which house
 the
 speedometer
and fuel gauge assemblies.
 The oil
 pressure, left-hand
directional
 and
 brake warning indicators
 are
 located
 in
the face
 of the
 speedometer bezel while generator,
 tem-
perature
 and
 right-hand directional indicators are grouped
with
 the
 fuel gauge unit.
 The
 high beam indicator
 is
located between
 the
 cluster bezels.
A special instrumentation package
 is
 available with
 the
eight-cylinder engine
 and
 center floor console combina-
tion.
 The
 special cluster includes:
 a
 clock; coolant
temperature,
 oil
 pressure, fuel
 and
 ammeter gauges,
mounted forward
 on the
 seat separator console;
 a ta-
chometer
 in the
 right circular housing
 of the
 dash
 in-
strument cluster; and
 a low
 fuel level indicator replacing
the
 oil
 pressure indicator lamp
 in the
 instrument cluster.
The instruments
 and
 gauges,
 may be
 serviced only
after
 the
 instrument cluster
 is
 removed from
 the
 vehicle.
Indicator
 and
 cluster lamps except
 for the
 high beam
indicator
 may be
 replaced without removing
 the
 cluster
assembly. Partial cluster removal
 is
 necessary when
replacing
 the
 high beam indicator due
 to its
 proximity
 to 
the upper brace
 rod
 anchor plate.
 The
 bulbs
 are in-
stalled
 in
 plastic sockets which lock into
 the
 cluster
housing and make contact with
 the
 printed circuit.
A
 low
 level fuel warning system
 is a
 special feature
available with
 the
 floor console gauge pack. This
 sys-
tem includes
 an
 indicator lamp
 in the
 dash cluster and
 a
semi-conductor unit senses
 the
 change
 in
 electrical
 re-
sistance
 of the
 fuel system circuitry
 as
 variations
 in
fuel level occur.
 The
 sensing device
 is
 replaced
 as a
unit
 if
 found defective.
The brake warning light serves
 a
 dual purpose.
 It
functions
 as an
 indicator when
 the
 parking brake
 is ap-
plied
 and
 also
 if
 there
 is a
 malfunction (loss
 of
 hydraulic
pressure)
 in the
 brake system. Switches which provide
the signal
 to
 operate
 the
 light
 are
 located
 at the
 parking
brake assembly
 and at the
 brake master cylinder
 in the
hydraulic lines. Service
 of the
 brake pressure differ-
ential switch unit
 is
 covered
 in
 Section
 5 of
 this manual.
Regular maintenance
 is not
 required on
 the
 instrument
cluster
 or its
 components other than maintaining clean,
tight electrical connections, replacing defective parts
and keeping
 the
 speedometer properly lubricated.
SERVICE OPERATIONS
INSTRUMENT CLUSTER (Figs.
 50
 thru
 53)
Removal
 and
 Installation
1.
 Disconnect battery ground cable.
2.
 Remove mast jacket lower support screws
 at toe
 pan.
3.
 Remove mast jacket upper support bolts
 and
 allow
steering wheel
 to
 rest
 on
 seat cushion.
CAUTION: Both supports must
 be
 detached
 to
prevent distortion
 of
 mast jacket.
4.
 Remove cluster attaching screws from face
 of
 panel
and partially remove assembly from console opening.
5. Reaching behind cluster assembly, disconnect speed-
ometer cable, speed warning device
 (if so
 equipped
 -
Fig.
 51) and
 chassis harness connector
 at
 rear
 of
panel.
6. Remove assembly from console opening to
 a
 suitable
bench area
 for
 required service operations.
7.
 To
 install, reverse removal procedure.
INSTRUMENT CLUSTER LAMP REPLACEMENT
1.
 Turn bulb holder counterclockwise
 and
 pull
 out to
remove from
 the
 cluster housing. 
2.
 Pull bulb straight out
 to
 remove from socket.
3.
 Press replacement bulb inward
 to
 lock
 in
 socket.
4.
 Insert lamp assembly into housing, with lugs
 on
holder entering notches
 in
 housing,
 and
 turn clock-
wise
 to
 lock
 in
 place.
PRINTED CIRCUIT REPLACEMENT
1.
 Remove instrument cluster
 as
 previously described
in this section.
2.
 Remove
 all
 cluster illuminating and indicator lamps
from housing.
3.
 Remove fuel gauge terminal nuts
 or
 tachometer
 re-
taining nuts securing printed circuit
 to
 housing.
4.
 Remove four
 hex
 head screws retaining printed
 cir-
cuit
 to the
 cluster housing
 and
 remove circuit from
housing.
5.
 To
 install, reverse removal procedure.
CAUTION:
 The
 retaining screws
 are
 part
 of
the grounding circuit
 and
 must
 be
 installed
 to
provide proper connections
 for the
 printed
 eir-
cuit.
CHEVROLET CHASSIS SERVICE MANUAL 

ELECTRICAL-BODY AND CHASSIS 12-41
HAZARD WARNING
SWITCHES
Fig.
 55- Directional Signal Switches
erating six to eight lamps simultaneously depending ve-
hicle series and model.
DIRECTIONAL SIGNAL SWITCH REPLACEMENT
All steering columns except tilt and telescoping.
Chevrolet, Chevelle, Chevy II and Camaro (Fig. 56)
1.
 Disconnect battery ground cable.
2.
 Disconnect signal switch wiring from chassis har-
ness at multiple connector under instrument panel.
3.
 Remove steering wheel assembly as outlined in Sec-
tion 9, Steering.
4.
 Remove shift lever roll pin and shift lever from
column (if applicable).
5. Push in hazard warning switch knob and unscrew
knob.
 Remove switch lever arm.
6. On Chevy U and Camaro models equipped with auto-
matic transmission remove column mounted dial in-
dicator housing and lamp assembly (if applicable).
7. Remove mast jacket lower trim cover retaining
screws and remove trim cover(s).
8. On Chevrolet and Chevelle models equipped with
automatic transmission loosen set screw and remove
quadrant dial pointer (if applicable).
9. Remove retaining
 "C"
 ring from upper steering shaft
using snap ring remover Tool J-22569 (Refer to
Steering, Section 9). Slide thrust and wave washers
from steering shaft. 
10.
 Loosen three signal switch mounting screws until
assembly can be rotated counterclockwise.
NOTE:
 Do not remove three screws from as-
sembly until unit is on the bench.
11.
 Rotate switch assembly counterclockwise and pull
unit from top of mast jacket. Allow unit to hang
from end of column.
Fig.
 56 - Standard Steering Column
CHEVROLET CHASSIS SERVICE 

ELECTRICAL-BODY AND CHASSIS 12-43
23.
 Install
 MCtT
 ring over steering shaft using snap ring
installer J-22659 (refer to Section 9).
NOTE: Be sure retaining ring is completely
seated into groove.
24.
 Install dial pointer on Chevrolet and Chevelle models
equipped with automatic transmission (if applicable).
25.
 Install dial indicator and lamp assembly on Camaro
and Chevy n models equipped with automatic
transmission.
26.
 Install mast jacket lower trim covers (if applicable).
27.
 Install hazard warning knob and turn signal lever.
28.
 Install shift lever.
29.
 Install steering wheel.
30.
 Install multiple connector to switch wiring using old
harness for wire color guide and connect to body
harness connector.
31.
 Connect battery ground cable and check operation of
assembly.
Tilt Steering Column (Fig. 57)
Chevrolet, Chevelle and Camaro
1.
 Disconnect battery ground cable.
2.
 Disconnect directional switch wiring harness from
body harness at multiple connector under instrument
panel.
3.
 Remove steering wheel assembly (refer to Steering,
Section 9).
4.
 Remove preload spring and cancelling cam from end
of shaft.
5.
 Remove shift lever pin and lever from steering col-
umn (except floor shift).
6. Remove directional le*ver screw and lever.
7.
 Push in hazard warning knob and unscrew knob.
8. On Camaro models equipped with automatic trans-
mission, remove quadrant dial and lamp assembly
from column.
9. Remove mast jacket trim cover
 (s).
10.
 On Chevrolet and Chevelle models with automatic
transmission, loosen set screw and remove quadrant
dial pointer.
11.
 Assemble slide hammer Tool J-6585-1 to turn signal
cover remover Tool J-21486. Place cover remover
over turn signal cover, tighten clamp, and pull cover
from end of column with slide hammer (Refer to
Steering, Section 9).
12.
 Remove three switch mounting screws, noting short
length of top screw.
13.
 Cut multiple connector from switch wiring and slide
switch from end of column.
14.
 To install new switch, feed wiring through the bear-
ing housing, around support, and through shift bowl
and shroud.
15.
 Feed through wiring protector. If clearance is not
sufficient loosen mast jacket bracket retaining bolts.
16.
 Insert switch wiring terminals in multiple connector.
Use old connector
 and
 wiring for color guide. 
17.
 Position switch and install three mounting screws
with short screw in top position.
18.
 Be sure hazard warning switch is pushed in, then
install turn signal cover using special Tool J-21853.
On automatic columns align key in cover with keyway
in bearing housing.
19.
 Install turn signal lever, hazard warning knob and
tilt lever.
20.
 Install shift lever and roll pin (where applicable).
21.
 Install dial pointer on Chevrolet and Chevelle. On
Camaro install dial indicator and lamp assembly.
22.
 Install trim covers and retaining screws.
23.
 Install cancelling cam and preload spring.
24.
 Install steering wheel (Refer to Section 9).
25.
 Connect switch wiring to body harness under instru-
ment panel.
26.
 Connect battery ground cable and check operation of
unit.
Standard and Telescoping Steering Column
Corvette (Fig. 58)
1.
 Disconnect battery ground cable.
2.
 Disconnect signal switch harness wiring from chas-
sis wiring harness at multiple connector under in-
strument panel.
3.
 Remove steering wheel assembly as outlined in
Steering, Section 9.
4.
 Remove preload spring and cancelling cam.
5.
 Remove directional signal lever screw and lever.
6. Push in hazard warning knob, unscrew and remove
knob.
7.
 Remove lower trim cover retaining screws and
cover.
8. Remove retaining ring, thrust and wave washers
from upper end of shaft.
9. Cut wiring above connector.
10.
 Remove three switch mounting screws, slide switch,
cover and upper bearing housing from column, pull-
ing wire through protector and escutcheon.
11.
 To install replacement switch, assemble upper bear-
ing housing and turn signal switch into switch cover,
then feed wiring through escutcheon and protector
until switch can be positioned on mast jacket.
12.
 With switch positioned on mast jacket, install three
switch mounting screws.
13.
 Install thrust and wave washers and snap lock ring
in place.
14.
 Install turn signal lever and hazard warning knob.
15.
 Install cancelling cam and upper bearing preload
spring on steering shaft.
16.
 Install steering wheel assembly.
NOTE:
 Be sure directional signal switch is in
neutral position before installing wheel.
17.
 Install connector on directional signal wiring har-
ness and connect to body harness connector.
CHEVROLET CHASSIS SERVICE 

ELECTRICAL-BODY
 AND CHASSIS 12-48
NOTE:
 Screws, nuts and lock washers for re-
assembling cover to wiper are contained in a
service repair package.
6. Remove output gear and shaft assembly, then slide
,
 intermediate gear and pinion assembly off shaft.
7. If necessary, remove terminal board and park switch
assembly as follows:
a. Unsolder motor leads from terminals. Coding of
motor leads is not necessary on single-speed
wipers.
b.
 Drill out rivets securing terminal board and park
switch ground strap to mounting plate.
NOTE:
 Screws, nuts and washers for attaching
a replacement terminal board-park switch as-
sembly are included with the replacement
assembly.
Motor
 (Fig. 65)
1.
 Follow Steps 1 through 7b under gear box
disassembly.
2.
 Remove, motor through bolts, tap motor frame
lightly, and remove motor from mounting plate.
3.
 Remove brush spring tension (fig. 68), slide arma-
ture and end plate from motor frame. Pull end
plate from armature.
NOTE:
 Thrust plug located between armature
shaft and end plate.
4.
 Remove end play adjusting washers from armature,
noting arrangement for proper reinstallation.
INSPECTION
Check and inspect all parts for serviceability, replace
as necessary. All parts can be replaced individually
except motor frame and field, which is serviced as an
assembly. Service kits also provide screws, nuts and
washers to replace gear cpver and terminal board rivets. 
ASSEMBLY
Refer to Figure 65 for exploded view of motor and gear
train.
Motor
Reassemble motor using reverse of disassembly
procedures.
NOTE:
 Armature end play is controlled by end
play washers. See Figure 69 for proper assem-
bly of end play washers. Lubricate armature
shaft bushings with light machine oil.
Gear Box
1.
 Assemble gear box using reverse of disassembly
procedure.
NOTE:
 Lubricate gear teeth with Delco Cam
and Ball Bearing lubricant or equivalent. Be
sure cover is properly located over dowel pins
and be sure to reinstall ground strap.
2.
 Place wiper in park position and install crank arm
on output shaft, rotate crank so alignment marks line
up with those on cover (fig. 70).
3.
 Replace retaining nut, place crank arm in vise,
tighten retaining nut.
WINDSHIELD
 WASHER PUMP
The windshield washer pump used on the 2-speed Type
"E"
 wiper motor assembly is a positive displacement
type pump employing a small bellows, bellows spring and
valve arrangement. The pumping mechanism is actuated
by a four lobe cam and driven directly by the wiper motor
(fig. 71). Thus, when the wiper is operated, this rotor is
always turning with the gear. Programming is accom-
plished electrically and mechanically by a relay assembly
and ratchet wheel arrangement.
GEAR
 CASE GROOVES
r— CRANK ARM GROOVES
WASHER PUMP
 Ha
ACTUATOR
 IB
•
 ^^HTS4LOBE
•MMBW
 CAM
Fig.
 70 - Wiper Crank Arm in Park Position 
Fig.
 71 - Wash Pump Drive Cam and Actuator
CHEVROLET
 CHASSIS SERVICE MANUAL 

ELECTRICAL-BODY
 AND
 CHASSIS
 12-49
BELLOWS
 AND
SPRING
 HOUSING 
COIL
 AND
 POLE
ASSEMBLY
VALVE
ASSEMBLY 
RATCHET
PAWL
ASSEMBLY
RATCHET
WHEEL
ACTUATOR 
PLUNGER
 ARM
ACTUATOR
 PIN 
HOLDING CONTACTS
 OPEN
RAMP TANG
PLUNGER
 ARM
Fig.
 73 -
 Releasing
 Pump from
 Lockout Position
Fig.
 72 -
 Washer
 Pump
 Mechanism
REMOVAL AND INSTALLATION
Removal of the washer pump from the wiper motor
consists of:
1.
 Disconnect wiring harness and washer hoses from
washer.
2.
 Remove the two pump-to-wiper retaining screws and
remove washer from wiper (fig. 66).
3.
 Reverse removal procedure to install assembly.
DISASSEMBLY-ASSEMBLY
Refer to Figure
1.
 Remove washer pump cover.
2.
 Relay
a. To remove relay unsolder coil leads from
terminals.
NOTE:
 No coil polarity is necessary when re-
soldering coil leads.
b.
 Remove coil retainer clip and slip coil assembly
out of mounting bracket.
3.
 Ratchet Pawl
a. To remove ratchet pawl disengage spring from
ratchet pawl and slide ratchet pawl from shaft. 
CAUTION: Be sure spring is properly assem-
bled before replacing washer pump cover.
Terminal Board
a. Remove terminal board attaching screws, ratchet
dog and board from washer base.
Ratchet Wheel
a. Remove lock ring from shaft.
b.
 Slide ratchet wheel from shaft.
Valve Assembly
a. To remove valve assembly remove screws that
secure valve assembly to bellows housing.
CAUTION: It may be necessary to carefully
pry bellows lip out of the valve body groove.
Bellows
a. To remove bellows first remove valve assembly.
b.
 Manually operate pump clockwise to release pump
from 'lock-out" position (fig, 73).
c. Hold bellows plunger arm from moving, then push
in against bottom of bellows with thumb and twist
bellows spring from housing.
Actuator Pin
a. Remove actuator pin retaining spring and slide
pin from washer base.
Reverse disassembly procedure to assemble washer.
DEPRESSED PARK 2-SPEED WIPER
CHEVROLET
GENERAL DESCRIPTION
The Type "C" two speed electric wiper assembly (fig.
74) incorporates a depressed park type (blades park
against windshield lower molding when the motor is
turned off) motor and gear train. The wiper has a com-
pound wound 12 volt motor and a gear box section con-
taining the gear mechanism and relay control. The motor
armature is fitted with a worm gear which drives the
main gear assembly and crank arm.
The relay control, consisting of a relay coil, relay
armature and switch assembly, is located in the gear box 
section bid controls the starting and stopping of the wiper
through a latching mechanism (fig. 75).
An electric washer pump is mounted on the gear box
section of the wiper and is driven by the wiper unit gear
assembly (fig* 75).
The overhaul procedures for the wiper are broken down
into three major areas: The motor section, gear box
section and washer pump section. Each section maybe
serviced independently of the other.
CHEVROLET CHASSIS SEftVKX 

ELECTRICAL-BODY AND CHASSIS 12-54
INNER
SPACER
WASHER
LOCK
PAWL
COIL
SPRING
DRIVE,
PAWL
DRIVE
 SHAFT
AND
 PLATE
ASSEMBLY 
DRIVE
 AND
 LOCK
 PAWL
 GUIDE
PINS
 IN
 GEAR
 POCKETS
 7
DURING
 NORMAL
 OPERATION
RELAY
 LATCH
 ARM
 IS
 HELD
OUT OF
 PATH
 OF
 GEAR
 BY
RELAY
 MAGNET
11.
12. 
Fig. 87 - Drive Gear and Shaft Assembly
CAUTION: It may be necessary at this point to
rotate armature slightly before the armature
worm will engage with worm gear teeth.
Rotate the case as required to align the bolt holes in
the case with those in the housing.
Secure the case to the housing with the two tie bolts.
GEAR BOX SECTION 
Fig. 88 - Drive and Lock Pawl Guide Pins in Pockets
(drive pawl away from latch arm, fig. 81), proceed
to Step 3.
Remove relay-switch attaching screw (fig. 80) and
carefully lift the relay-switch assembly out of the
gear box. Unsolder leads from switch terminals as
required. Refer to Figure when resoldering leads.
To remove terminal board assembly simply slide it
out of housing and unsolder leads as required.
The gear box section is subdivided into two areas, (A)
the relay control and latching mechanism and (B) the
drive gear mechanism.
A—Relay Switch and Latch Assembly-
Terminal Board Removal
1.
 Remove screws retaining washer pump assembly to
wiper unit.
2.
 If wiper pawl is in full park position (drive pawl lo-
cated in magnetic switch assembly slot, fig. 79), it
becomes necessary to remove gear assembly first
(see Gear Assembly Removal).
If wiper gear mechanism is not in park position 
VALVE
ASSEMBLY—j
RATCHET ->Mmk 
LATC
SPR 
HOUT
ING 
RELAY COIL
/PAWL SPRING
/ /'
^L / PAWL
|j^»i It
RATCHET
WHEEL
Fig. 89 - Washer Pump Assembly
CHEVROLET CHASSIS SERVICE MANUAL 

ELECTRICAL-BODY
 AND
 CHASSIS
 12-55
COVER RELAY COIL
ASSEMBLY 
PAWL SPRING
a=-
VALVE ASSEMBLY
RATCHET DOG AND _/_ f1
LATCHOUT SPRING ^—-»* 
PAWL
RATCHET WHEEL
J
Fig.
 SO
 -
 Exploded View
 of
 Pump
Relay Switch—Latch and Terminal Board Assembly
1.
 Resolder leads
 to
 wiper terminal board as required
(fig. 82).
2.
 Slide terminal board into wiper housing being careful
to position the terminal board resistor lead as shown
in Figure 83.
3.
 Resolder leads
 to
 relay switch assembly
 as
 required
(fig. 82).
4.
 Position relay-switch assembly
 in
 housing.
CAUTION:
 Be
 very careful
 to
 route leads
 in
such
 a
 manner
 as to
 avoid having them pinched
between relay and wiper housing.
5. Install relay-switch mounting screw.
6. Assemble gear box cover and washer pump assembly
to wiper being careful that the ground strap
 is
 prop-
erly connected. Refer
 to
 Figure 75 for assembly
 of
washer pump
 to
 gear housing.
B-Drive Gear Disassembly (Fig.
 84)
1.
 Remove washer pump assembly.
2.
 Remove crank
 arm
 retaining nut, crank arm, rubber
seal
 cap,
 retaining ring, shim washers, shield
 and
spacer washer in the order indicated.
3.
 Slide gear assembly out
 of
 housing (fig. 85).
4.
 Slide drive plate and shaft out
 of
 gear and remove the
drive pawl, lock pawl
 and
 coil spring
 as
 required.
Drive Gear—Assembly
1.
 Position drive pawl
 on
 drive plate
 as
 shown
 in
 Fig.
ure 86.
2.
 Assemble lock pawl over drive pawl
 as
 shown
 in
Figure
 86.
3.
 Slide gear
 and
 tube over
 the
 drive shaft (fig. 87).
(Move drive and lock pawls
 as
 required to allow their
respective pins
 to fit in the
 gear guide channel,
fig.
 88).
4.
 Holding
 the
 gear, manually rotate
 the
 drive plate
until
 the
 drive
 and
 lock pawl guide pins snap into
their respective pockets in the gear (fig. 88). 
5. Reinstall coil spring between lock
 and
 drive pawls
(fig. 88).
IMPORTANT: Be very careful
 to
 maintain lock
and drive pawl guide pins
 in
 their respective
pockets during Step
 6.
6. Assemble inner spacer washer over gear shaft
 and
assemble gear mechanism
 in
 housing
 so
 that
 it is
positioned with respect to the housing in the approxi-
mate location shown
 in
 Figure 85.
7. Reassemble
 the
 outer spacer washer, shield, shim
washers
 as
 required
 to
 obtain .005"
 max.
 end play,
snap ring and rubber seal cap in the order indicated.
Refer to Figure 84.
8. Operate wiper
 to
 "park"
 or
 "off" position and install
crank arm.
9. Reassemble washer pump
 to
 wiper (fig. 75).
WASHER PUMP UNIT
The washer pump and/or valve assembly
 may be re-
moved from the wiper assembly
 as a
 unit; therefore,
 it is
not necessary
 to
 remove
 the
 wiper assembly irom
 the
vehicle
 if
 only
 the
 washer pump and/or valve assembly
required service.
When
 the
 pump
 is
 removed from
 the
 wiper assembly,
all working parts
 are
 readily accessible and may easily
be serviced
 as
 necessary
 (fig. 89).
 An exploded view
 of
the washer pump
 is
 shown in Figure 90.
Removal and Installation
1.
 Raise vehicle hood.
2.
 Disconnect washer hoses
 and
 electrical connections
from assembly.
3.
 Remove
 3
 screws securing washer pump
 and
 cover
to wiper assembly. Remove pump from wiper gear
box.
4.
 Position pump
 and
 cover assembly
 to
 the wiper and
install retaining screws.
5. Connect washer hoses
 to
 valve assembly and wiring
leads
 to
 pump and wiper terminals.
6. Check operation
 of
 unit.
CHEVROLET CHASSIS SERVICE MANUAL