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Maintenance
38 Owner’s Manual for Stationary Emergency Generators
Installation
Always connect the positive battery cable first. If the positive cable should contact ground with the
negative cable installed, the resulting sparks may cause a battery explosion which could result in seri-
ous injury.
1. Install rubber protective cover over battery posi-
tive (+) terminal. See A of Figure 5-11
2. Grasp battery strap and lift battery. See B of
Figure 5-11
3. Set battery onto battery tray.
4. Tighten two screws with nylon washers to
secure hold-down clamp to battery tray.
5. Remove rubber protective cover from battery
positive (+) terminal.
6. Install battery positive cable (red) to battery
positive (+) terminal.
7. Install battery negative cable (black) to battery
negative (-) terminal.
NOTE: If continuing with Schedule A maintenance
procedures, leave the battery negative cable
(black) disconnected.
5.7.10— Check and Adjust Accessory/
Drive Belt
5.7.10.1— Check
Check the accessory/drive belt condition.
1. Perform visual inspection as follows:
• Inspect belt for cracks, fraying, excessive wear
or other damage.
• Verify that belt is free of grease and oil. Replace belt if contaminated.
NOTE: Use a solution of soap and warm water to clean pulleys, if necessary. Avoid use of solvents, but if
used, always follow by a soap and water wash.
2. Check the fan belt deflection. Adjust the belt deflection as follows:
• Using a suitable gauge, apply 22 Ibs (10 kgf) force midway between the water pump and alternator pulleys. See
Figure 5-12
NOTE: 5.4L (48 kW) units are provided with an automatic belt tensioner and do not need adjustment.
• Take note of gauge reading. If belt deflection is not within specification, see Subsection 5.7.10.2—Adjust.
5.7.10.2— Adjust
1. Loosen DC alternator tension bracket screw. Rotate alternator outward to reduce belt deflection, rotate inward to
increase belt deflection.
2. Tighten DC alternator tension bracket screw to 17-22 ft-lbs (23-30 N-m).
3. Recheck belt deflection and repeat steps as necessary.
Belt Deflection
English Metric
3/8 - 5/8 Inches 7.6 - 12.7 cm
$
Figure 5-11. Remove/Install Battery
A = Protective Cover
B = Battery Strap
A
B