PREVOST X3-45 Multiplex User Manual

Section 06: ELECTRICAL
PA1562
35
FIGURE 20: ALTERNATORS AND ACCESSORIES MOUNTING TORQUES (DDEC SERIES 60) 01182
5.2 VOLVO D13 TWIN BOSCH ALTERNATORS INSTALLATION
Two 28 volt 140A, self regulated, belt driven, air-cooled T1 BOSCH alternators are used in the 24 volt
electrical system.
MAINTENANCE
Change the brushes and voltage regulator as per “Repair and Testing Instructions for T1 Alternator
0120 69 552” every 100,000 miles (160 000 km) or once every two years, whichever comes first.
Replace bearings as per “Repair and Testing Instructions for T1 Alternator 0120 69 552” every 200,000
miles (320 000 km) or once every four years, whichever comes first.
Refer to Bosh T1 Alternator Maintenance Manual Annexed at the end of this section.
NOTE
Use Polyrex EM grease (684922) when repacking the bearings. Grease comes in 14.1 oz (400gr)
cartridges.
If the alternators needed to be removed, reinstall as follows. Refer to figures 21 and 22 for installation and
tightening specifications:
1. If not already done, mount the alternator brace to the engine and alternator support (figure 21);
2. Bolt the alternators to the bracket using one 3.5 inch bolt at the top and two 1¾ inch bolts at the lower
mounting bosses (fig. 21);
3. On the drive shafts of both alternators, install key, pulley, spring washer and nut;
NOTE
Final tightening of the pulleys can be performed once the belt is installed. This will help keep the pulley
from turning when tightening.
4. Install the alternators belt, the coolant pump belt, the A/C compressor belt and then the radiator fan
driving mechanism belt (figure 22).

PREVOST X3-45 Multiplex Specifications

General

Length	45 ft
Width	102 in
Engine	Volvo D13
Horsepower	500 hp
GVWR	54, 000 lbs
Height	146 in
Sleeping Capacity	Varies based on floor plan
Water Capacity	Varies based on floor plan