TK 55676-19-IM-EN
71
NNoottee:: The system will be bled of air later by following the “A/C System Charging and APU Engine Start-up
Procedures”.
a. Add coolant removed earlier back into the tractor’s radiator.
b. DDOO NNOOTT start the tractor’s engine at this time.
6. Install supplied coolant nameplate in a visible area near the tractor’s coolant fill cap.
Figure 40. APU Coolant Hoses Tee’d Directly Into Tractor’s Heater Hoses Shown
HEATER HOSE
ABA715-1
OUTLET
OUTLET
INLET
TRACTOR HEATER
CORE
INLET
NOTICE
This truck is equipped with auxiliary power
unit. Coolant system must be bled after
main engine coolant system servicing.
HEATER
HOSE
6
APU HOSE
TRACTOR
ENGINE
TTrraaccttoorr CCoooollaanntt HHoossee IInnssttaallllaattiioonn
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