Guardian Technologies 4389 Section, Part, Diagnostic Tests, Check Pinion Gear Operation V-Twin

DC CONTROL

PART 4

SECTION 4.4

DIAGNOSTIC TESTS

Figure 10. Check Pinion Gear Operation (V-Twin)

Figure 12. Clamp-On Ammeter

TACHOMETER:

A tachometer is available from your Generac Power Systems source of supply. Order as P/N 042223. The tachometer measures from 800 to 50,000 RPM, Figure 13.

Figure 11. Check Pinion Gear Operation

(Single Cylinder)

TOOLS FOR STARTER PERFORMANCE TEST:

The following equipment may be used to complete a performance test of the starter motor:

❏A clamp-on ammeter.

❏A tachometer capable of reading up to 10,000 rpm.

❏A fully charged 12-volt battery.

MEASURING CURRENT:

To read the current flow, in AMPERES, a clamp-on ammeter may be used. This type of meter indicates current flow through a conductor by measuring the strength of the magnetic field around that conductor.

Figure 13. Tachometer

TEST BRACKET:

A starter motor test bracket may be made as shown in Figure 14. A growler or armature tester is available from an automobile diagnostic service supplier.

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