Fuel Specifications - PREVOST H3-41 Maintenance Manual

FIGURE 22: LOCATION OF MOUNTING POINTS
FIGURE 23: TRANSVERSE SCREWS, 2 LOCATIONS
FIGURE 24: LONGITUDINAL SCREWS, 4 LOCATIONS
4. Replace any bolt showing signs of wear by
new hardware. DO NOT REUSE NUTS.
Perform replacement one screw location
at a time with appropriate support. Apply
torque seal mark.
Torque: 82 lbf-ft.
Hardware part number and description
# 5001941 screw, cap hex M12x1.75x120 g10.9
# 500806 screw, cap hex M12x1.75x35 g10.9
# 500811 nut, hex sto M12-1.75 G10
# 500958 flat washer ss .531x1.062x.095
# 030082 U-shim 3.175mm thick (0.125 in)
# 030083 U-shim 0.953mm thick (0.038 in)
5. On the transversal screw joints (Figure 25)
any visible gap between cradle support tubing
and vehicle frame mounting lugs is not
acceptable.
FIGURE 25: VISIBLE GAP ON TRANSVERSAL SCREW
JOINT
6. If shims are not present, the visible gap
should be shimmed using U-shims #030082
and/or #030083 as required.
7. Shim arrangement may vary and may be
stacked on both sides (Figure 26).
FIGURE 26: SHIM INSTALLATION, TRANSVERSE
SCREW. ARRANGEMENT MAY VARY

6. FUEL SPECIFICATIONS

The quality of fuel used for high-speed diesel
engine operation is a very important factor in
obtaining satisfactory engine performance, long
engine life and acceptable exhaust emission
levels.
The U.S. Environmental Protection Agency
(EPA) has issued new standards to improve air
quality by
through a combination of cleaner-burning diesel
engines and vehicles.
To meet EPA standards, the petroleum industry
produces Ultra Low Sulfur Diesel (ULSD) fuel,
also referred to as S15, containing a maximum
of 15ppm (parts-per-million) sulfur.
PA1621 Maintenance Manual All Series | Revised May 2018
SECTION 03 : FUEL SYSTEM
significantly reducing emissions
17