Gases to build up in the work area; either perform the check outside or use an exhaust gas extraction system.

AMMETER

Electrical system 9«21

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Disconnect the alternator wiring connector

Alternator wiring clamp bolt (A) and stator bolts (B)

32.9a Unscrew the rotor bolt using a strap to hold the rotor...

32 Alternator- check, ^

removal and installation SJ*.

Check

1Remove the left-hand frame side panel (see Chapter 8).

2 Trace the alternator wiring back from the top of the left-hand engine cover and disconnect it at the white 3-pin connector containing the three yellow wires (see illustration).

3Using the multimeter set to the resistance (ohms) scale, measure the resistance between each of the yellow wire terminals on the alternator side of the connector, taking a total of three readings. If the stator coil windings are in good condition the three readings should be within the range shown in the Specifications at the start of this Chapter.

4 Check for continuity between each terminal and earth (ground); there should be no continuity (infinite resistance) between any of the terminals and earth. If not, the alternator stator coil assembly is at fault and should be renewed. Note:Before condemning the stator coils, check the fault is not due to damaged wiring between the connector and coils.

Removal

5 Disconnect the wiring as described in Steps 1 and 2). Free the alternator wiring from any

clips or guides and feed it through to the left-hand engine cover.

6 Drain the engine oil (see Chapter 1).

7 Remove the left-hand engine cover (see Chapter 2, Section 13).

8 To remove the alternator stator, first unscrew the bolt securing the alternator wiring clamp to the cover and remove the bolt, clamp and the wiring grommets from the engine cover. Unscrew the bolts securing the alternator stator to the cover and remove the stator (see illustration).

9To remove the rotor bolt from the end of the crankshaft it is necessary to stop the rotor from turning; use either the Honda service tool (pt. no. 07725-0040000) or a rotor holding strap (see illustration).Alternatively, if theengine Is in the frame, place the transmission in gear and have an assistant apply the rear brake to stop the rotor turning, then unscrew the bolt and remove the bolt and washer (see illustration).

10To remove the rotor from the shaft it is
necessary to use a centre-bolt type rotor
puller (Honda service tool pt. no. 07733-
0020001 or a pattern alternative) - do not use
a legged puller on the rotor. Thread the rotor
puller into the centre of the rotor and turn it
until the rotor is displaced from the shaft (see
illustration).Remove the Woodruff key from
its slot in the end of the crankshaft for
safekeeping if it is loose (see illustration).

Installation

11Install the stator in the cover, aligning

the wiring with the outlet hole (see illus­tration 32.8).Apply a suitable non-permanent thread-locking compound to the stator bolt threads, then install the bolts and tighten them to the torque setting specified at the beginning of this Chapter. Apply a suitable sealant to the wiring grommets, then install them in the seats in the cover. Secure the wiring with its clamp and tighten the clamp bolt.

12Clean the tapered end of the crankshaft and the corresponding mating surface on the inside of the rotor with a suitable solvent. If removed, fit the Woodruff keyinto its slot in the crankshaft (see illustration).Make sure that no metal objects have attached themselves to the magnets on the inside of the rotor, then install the rotor onto the shaft, aligning the slot

Electrical system

Date: 2016-01-14; view: 565