Fiat Kobelco EX355 Tier2, Техническое руководство

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EX355 W5-8-7
STARTING AND CHARGING
3. Check the diode trio for continuity in both direc-
tions. If there is continuity and/or an open circuit in
both directions, the rectifier must be replaced.
• Bracket, rotor, and stator reassembly is difficult
because of the tight fit of the components. To make
reassembly easier, heat the area around the rear
bracket bearing box to approximately 55 °C.
Tightening torques
Pulley fixing nut: 147 N•m (15 kgm/108 Ibft)
Through bolts: 5.1 N•m (0.52 kgm/3.8 Ibft)
Bearing retainer screws:
3.6 N•m (0.37 kgm/2.7 Ibft)
Coil retaining screws:
3.6 N•m (0.37 kgm/2.7 Ibft)
Rectifier retaining screws:
3.6 N•m (0.37 kgm/2.7 Ibft)
Regulator retaining screws:
3.4 N•m (0.35 kgm/ 2.5 Ibft)
Nuts for stud bolts: 8.8 N•m (0.9 kgm/6.5 Ibft)
1. Positive diode
2. Diode terminals
3. A part of negative diode
FRONT BRACKET
Turn the bracket. Listen for bearing noise (a scraping
sound). Feel for rough rotation. Replace the bracket
if either of these conditions is present.
Check for grease leakage. If leakage is minimal, wipe
it away. If leakage is excessive, replace the bracket.
REGULATOR
The regulator cannot be checked in the absence of
the other components. Check regulator operation
after alternator reassembly.
Reassembly
Follow the disassembly steps in the reverse order.
Note the following precautions.
• No lubrication is required. Bearings are
prelubricated.
• Wipe away any grease leakage from the bearing
area.
• Use high-temperature solder (melting point of
230 °C).
• Use a 180 - 280 Watt soldering iron to solder the
leads as quickly as possible. Do not apply the
soldering iron for more than 5 seconds. Diode
damage will result.
SM7350