Diesel heater produces exhaust gases when operating. Brain damage or
death can result from heavy exposure to exhaust gases. Operate heater in a
well ventilated area or duct exhaust to the outside if operating in an enclosed
Start heater and allow heater to run for 5 minutes.
Observe that heater is burning evenly and smoothly, and that no smoke is visible in exhaust.
Slowly turn adjust knob (125) counterclockwise just to the point that no smoke is visible in exhaust.
Shut down heater.
HI-LO Control and Microswitch Adjustment.
Remove heater (18, Figure 2-1-6) from bottom of superstructure cab, refer to Removal procedures.
Remove covers (27 and 28) from heater (18).
Loosen setscrews (97) securing actuator stop (98) to actuator rod (99).
Hold actuator rod (99) and move actuator stop (98) toward microswitch (91) to increase the temperature
within the control range. Move stop (98) toward bi-metal blade (100) to decrease the temperature within
the control range.
Tighten setscrews (97) to secure actuator stop (98) in place.
There must be a minimum gap of .050 in. (1.27 mm) between bi-metal blade
(100) and actuator stop (98) when lever of bracket assembly (96) is in the LO
position [lever is pulled to burner head side of bracket (88)].
Install covers (27 and 28) on heater (18).
Install heater (18) on bottom of superstructure cab, refer to Installation procedures.