Actron 5FI-4GLSTX Kullanıcı Kılavuzu

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COMPRESSION

TESTER

INSTRUCTIONS

Before making this test it

is a good practice to check

and be sure that all

cylinder head bolts are

tightened to the engine

manufacturer's torque

specifications.

1. Run the engine for about 15

minutes until it reaches normal

operating temperature.

2. With the engine off, loosen all

spark plugs about one turn,

then use an air hose to blow all

the dirt out of the spark plug

wells. Then remove all of the

spark plugs and gaskets. Place

them on a clean flat surface in

the order in which they were

removed. This will help to cor-

relate any compression prob-

lem with the condition of the

plug from the particular cylin-

der involved.

120 150

180

210

8 10 12

240

270

kPa x 100

300

Compression

Tester

3. Remove the air filter and block

open the carburetor throttle

plates to maximum. Remove

the high tension lead from the

center of the distributor and

ground it.

4. Hold the compression tester in

the spark plug hole and crank

the engine for at least 4 com-

pression strokes or until pres-

sure stops rising on the tester.

5. Record the compression read-

ing and repeat the test on all

remaining cylinders.

6. On a normal cylinder, the

CP7821

needle should advance on each

stroke until it reaches a peak.

All cylinders should test within

the engine manufacturer's

specifications and readings

should not vary more than 10%

from cylinder to cylinder.

7. If the needle fails to advance

normally or if it remains the same

for several strokes and then

starts to climb, the cylinder has a

sticking valve.

8. If the compression reading is

15 or more pounds above the

manufacturer's specification, it

is indicative of carbon build-up

in the cylinder.

One Year Warranty

If within one year from the date of pur-

chase this equipment fails due to defect in

materials or workmanship, return it to

Actron and Actron will repair it free of

charge.

This warranty gives you specific legal

rights, and you may also have other rights

which may vary from state to state.

9. If a reading on two adjacent

cylinders is 20 pounds or more

lower than the rest of the cylin-

ders, a defective head gasket

is indicated.

10. If readings are low or un-

even between cylinders, pour

a teaspoon of S.A.E. #30 oil

into each cylinder and retest. If

the readings increase consid-

erably, the fault is poorly seated

or worn rings. If the readings

remain about the same, the

valves are at fault.

11. When tests are completed,

put the spark plugs back in the

engine and return the high ten-

sion lead to the center of the

distributor. Unblock the throttle

and replace the air filter.

Customer Service

For product information or customer ser-

vice please call 1-800-ACTRON-7 (1-800-

228-7667) Monday through Friday, be-

tween 8:30 a.m. and 4:30 p.m. Eastern

time or fax anytime at (216) 651-2388.

Actron can also be reached by Email or

on the Internet.

Email address: [email protected]

Internet home page: http://www.actron.com

Actron Manufacturing Company

9999 Walford Avenue

Cleveland, Ohio 44102-4696

tered trademark of Snap-On Tools Company and is used

2-202103

under exclusive license.