Specifications

42–04 Alcohol Evaporator
Cleaning and Inspection
Midland
Maintenance is required during both the freeze sea-
son and the off season to keep the alcohol evapora-
tor in good working order.
Off Season
During the off season, drain the unit of alcohol. At
regular engine service intervals, open the drain cock
to remove moisture from the alcohol evaporator. Be-
fore reactivating the evaporator for the next freeze
season, drain, disassemble, inspect, and steam-
clean the unit of any sludge that may have accumu-
lated. It is advisable to replace any rubber parts
when assembling the alcohol evaporator. Perform
this service just before the freeze season.
Freeze Season Reactivation
1. Remove the filler cap, and check the cap tet-
raseal.
2. Remove the capscrews and reservoir from the
cover.
3. Remove the cover tetraseal.
4. Drain the air tank, and disconnect the line from
the evaporator outlet. Remove the check-valve
retainer, spring, and disc.
5. Install the disc, spring, and check-valve retainer,
and connect the line to the evaporator outlet.
6. Install the cover tetraseal.
7. Install the reservoir on the cover and tighten the
capscrews.
8. Fill the reservoir with 40 ounces (1183 mL) of
methyl alcohol, then install the filler cap.
42–05 Dana Spicer Camshaft
Bracket Lubrication
IMPORTANT: Perform MOP 42–11 before lubri-
cating the camshaft bracket.
Pump grease into the camshaft bracket until it ap-
pears at the slack adjuster end of the bracket. See
Fig. 4.
Use an NLGI Grade 1 or Grade 2 multipurpose chas-
sis grease. If grease leaks out under the camhead,
the camshaft bracket grease seal is worn or dam-
06/04/96
f421384
1
2
1. End Cover Assembly
2. Heater/Thermostat Terminals
Fig. 3, End Cover Terminals Location
f420011a
05/28/93
1
2
3
A
A. Grease Exit
1. Brake Chamber
2. Slack Adjuster
3. Non-Pressure-Relief
Grease Fitting
Fig. 4, Camshaft Bracket Lubrication
Brakes42
Century Class Trucks Maintenance Manual, April 200542/4