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Engine Maintenance
113
Belt Tension Adjustment and
Belt Replacement
NOTE: Belt tension specifications are measured
using Thermo King belt gauge tool, P/N
204-427.
Belts should be regularly inspected during unit
pretrip for wear, scuffing or cracking and correct
tension.
Correct belt tension is critical for correct unit
operation. Belts that are too loose will slip, squeal
or whip causing excessive vibration levels and
poor unit performance. Belts that are too tight will
put too much strain on the belt fibers and
bearings, causing premature belt and bearing
failures. New belts should be tensioned cold.
NOTE: DO NOT attempt to remove or install
belts without loosening adjustments. Belts that
are installed by prying will fail prematurely due
to internal cord damage.
The water pump belt tension should read 15 to 35
on the belt tension gauge.
1. Remove the nuts from the water pump pulley.
2. Remove the pulley sliding section and add or
remove shims to adjust the belt tension.
3. Reinstall the belt on the pulley and replace the
sliding pulley section on the pulley.
4. Tighten the mounting nuts on the water pump
pulley.
5. The belt tension should read 15-35 on the belt
tension gauge.
NOTE: When adjusting the belt tension using
shims and adjustable pulleys, the belt may still
feel loose when the belt tension gauge indicates
the correct tension. Allow 18 to 25 mm (0.75 to
1.0 inch) deflection with 3 to 4 kg (6 to 9 lb) of
force.
WARNING: DO NOT jump belts on by
cranking the engine. Personal injury may
result.
WARNING: DO NOT attempt to adjust
belts with the unit operating.
WARNING: With the unit On/Off switch
in the “ON” position, the unit may start
operation at any time without prior
warning. Switch unit On/Off switch to
“OFF” position before performing
maintenance or repair procedures.
Water Pump Pulley (Items 1 - 5)
1.
Fixed Pulley Section
2.
Spacer
3.
Shims (4)
4.
Sliding Pulley Section
5.
Nut (4)
6.
Belt
7.
Crankshaft Pulley
Figure 91: Water Pump Fan Belt
AJA2086
1
2 3 4 5
7
6
Содержание SGCO 3000
Страница 4: ......
Страница 12: ...SGCO 3000 Genset Addendum 12...
Страница 14: ...Genset Model Features 14...
Страница 22: ...Service Guide 22...
Страница 32: ...Unit Description Features Options 32...
Страница 78: ...Operating Instructions 78...
Страница 86: ...Electrical Maintenance 86...
Страница 114: ...Engine Maintenance 114...
Страница 124: ...Alternator Operation and Diagnosis 124...
Страница 130: ...Structural Accessory Maintenance 130...
Страница 138: ...Index 138...
Страница 140: ...Electrical and SG Menu Flow Diagrams 140...
Страница 141: ...141 SGCO 3000 Wiring Diagram Page 1 of 1...
Страница 142: ...142 SGCO 3000 Schematic Diagram Page 1 of 1...