CHAPTER 4
SERVICING OF MATERIEL USED IN CONJUNCTION WITH
THE LUBRICATING UNIT
Section I. HEATER
tanks, and to maintain satisfactory engine, battery box,
148. Description
and hose reel temperatures, through lever controlled heat
The heater on the lubricating unit is controlled by a
ducts at temperatures down to -70 F.
thermostat to provide heated fresh air at sufficient
pressure to preheat and maintain warmth in the lubricant
1
Heater fuel pump filter hea
d
8
Heater
14
Ground strap thumb screw
2
Power line connector
9
Heater slide tray
15
Press-to-test lamp
3
Thermostat
10
Cap screw, -20 x in. Ig (4 rqr)
16
Heater fuel pump filter bowl
4
Heater bleed valve
11
Heater control switch
17
Gasket
5
Thermostat receptacle
12
Circuit breaker
18
Heater fuel pump filter spring
6
Cable receptacle
13
Heater shelf locking bolt
19
Heater fuel pump filter strainer
7
Fuel pump receptacle
Figure 40. Servicing heater fuel pump filter.
84
