Chevrolet 10 Series 1970, Руководство по обслуживанию

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CLUTCHES AND TRANSMISSIONS 7-5
NOTE: The m aster cylin d er must be fille d to
1/2" below the top of r e s e r v o ir . The system
must be fr e e of air.
NOTE: On T E 600 M odels with R PO L-4 3 the
sla ve cylin d er is mounted on the transm ission,
how ever, these procedu res a re s t ill applicable.
Clutch Pedal Total Travel
1. Disconnect the clutch fo rk return spring.
2. Bottom sla ve cylin d er push rod and piston by pushing
the sla ve cylin d er push rod into the cylin d er as
fa r as it w ill go (fig . 6).
3. M ove the clutch fo rk until the throwout bearing
touches the p ressu re plate re le a s e le v e r s .
4. Adjust clearan ce between the slave cylin d er push rod
fulcrum ( “ V” block) by adjusting nut behind it to
p ro p er clearan ce between fulcrum p ivot and clutch
fo rk (fig . 6).
D I M E N S I O N M O D E L U S A G E
7/32" TE 600 with R PO L-4 3
3/16" A ll H ydraulic except
T E 600 with R PO L-43
NOTE: T h is clearan ce can be checked with the
shank of appropriate d ia m eter d rill.
Clutch Pedal Free Travel A djustm ent
Adjust clutch m aster cylin d er adjustable push rod to
obtain fr e e tra v e l between the clutch m aster cylinder
push rod, and the m aster cylin d er piston. This w ill
amount to 1/4" fr e e pedal tr a v e l m easured at the center
line of the pedal pad, just b efo re the clutch push rod
touches the m aster cylin d er piston (fig . 7).
NOTE: This w ill insure the m aster cylin d er
piston m oving su fficien tly to u ncover the port in
the m aster cylin d er r e s e r v o ir .
CLUTCH PEDAL-EXCEPT TILT CAB
(Refer to Fig. 8)
Removal
1. P u ll parking brake le v e r to applied position.
Fig . 6 —A d ju s tin g S lave C y lin d e r Push Rod
F ig . 7 —C lu tc h Pedal Free T ra v e l
2. R em ove bolt at clutch pedal push rod le v e r , then
rem ove le v e r fro m pedal shaft.
3. Hold pedal pad with one hand and slid e pedal and
shaft assem bly outboard enough to c le a r pedal stop,
then allow return spring (o r o ve rc e n te r sprin g) to
pull pedal up high enough to unhook sprin g fro m pedal
arm .
4. Rem ove pedal and shaft assem bly fro m support
bracket.
Inspection
1. Check clutch pedal bushings fo r e x c e s s iv e w ear and
rep lace i f n ecessary.
2. Check clutch pedal shaft fo r w ea r and alignm ent and
straighten o r rep la ce if n ecessary.
Installation
NOTE: Use new shaft bushing i f needed and
lu bricate with Lu briplate o r petrolatum .
1. Slide one pedal shaft bushing o v e r shaft, in stall shaft
in support enough to s till c le a r pedal bumper stop,
hook pedal return (o r o ve rc e n te r) sprin g to pedal,
then rotate pedal fo rw a rd of bumper stop; slid e shaft
into position in support and re le a s e pedal against
bumper stop.
2. In stall clutch pedal shaft bushing o v e r pedal shaft end
and into place in s le e v e .
3. A ssem b le pedal push rod le v e r o v e r pedal shaft and
in stall bolts, w ashers, and nut. Torque to 25 ft. lbs.
4. Adjust clutch pedal fr e e tra v e l as needed.
CLUTCH PEDAL—TILT CAB (Fig. 9 )
Removal
1. T ilt cab fo rw a rd and block in place.
2. Rem ove upper to lo w e r clutch pedal arm bolt and
slid e upper arm through flo o r boards.
CHEVROLET TRUCK SERVICE MANUAL