Guardian Technologies 5308 Manual De Usuario

PROCEDURE:
1. Remove air cleaner cover to access stepper motor.

2. Physically grab the throttle and verify the stepper motor, linkage

and throttle do not bind in any way, if any binding is felt repair
or replace components as needed. Some resistance should be
felt as the stepper motor moves through it's travel.

3. Physically move the throttle to the closed position by pushing

the throttle down as looking from above.

a. Place the idle control switch to off.
b. Place  the  start  switch  to  start  and  watch  for 

stepper  motor  movement  it  should  move  to  the 

wide  open  position  during  cranking.  Once  the 

unit  starts  the  stepper  motor  should  move  the 

throttle to a position to maintain 60 Hertz.

STEPPER
MOTOR

THROTTLE

LINKAGE

FULL THROTTLE

CLOSED THROTTLE

4. If  no  movement  is  seen  in  Step  3  remove  the  control  panel

cover. Verify the six pin connector on the printed circuit board is
seated properly, remove the connector and then replace it and
test again. Verify the switches are correctly set. See Figure 4-1
on Page 16 for positioning.

5. If problem continues remove six pin connector from printed cir-

cuit board. Set Volt meter to measure ohms. Carefully measure
from the end of the six pin harness as follows:

RED

EMPTY

ORANGE

BROWN

YELLOW

BLACK

a. Connect  one  meter  lead  to  Red,  connect  the 

remaining test lead to Orange, approximately 10 

ohms should be measured.

b. Connect  one  meter  lead  to  Red,  connect  the 

remaining  test  lead  to Yellow,  approximately  10 

ohms should be measured. 

c. Connect  one  meter  lead  to  Red,  connect  the 

remaining test lead to Brown, approximately 10 

ohms should be measured.

d. Connect  one  meter  lead  to  Red,  connect  the 

remaining  test  lead  to  Black,  approximately  10 

ohms should be measured.

e. Connect  one  meter  lead  to  Red,  connect  the 

remaining  test  to  the  stepper  motor  case.  No 

resistance  should  be  measured  INFINITY  or 

Open”

See Figure 6-4.
6. Set a voltmeter to measure DC voltage.

7. Connect  the  positive  meter  test  lead  to Wire  15B  at Terminal

Block 1 (TB1). Connect the negative meter test lead to ground.
See  Figure  6-5.  Place  the  Start-Run-Stop  Switch  (SW1)  to
START. 12 VDC should be measured. If voltage was measured
proceed  to  Step  8.  If  voltage  was  not  measured,  proceed  to
"RESULTS".

8. Set a voltmeter to measure resistance.

9. Disconnect  the  J2  connector  from  the  printed  circuit  board.

Connect one meter test lead to Pin Location J2-1 (Wire 15B.
Connect  the  other  meter  test  lead  to Wire  15B  at Terminal
Block 1 (TB1). See Figure 6-6. Continuity should be measured.

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