Coolant Heater; Starting The Engine With Coolant Heater - Zetor 8621 Forterra turbo Operator's Manual

∗ COOLANT HEATER

Coolant heater is assembled into engine
block as an option. At tractors Z 8621 -
Z 10641output of heater is 1000 W with
voltage 220 V of alternating electrical
current.
At tractors Z 11641 output of
heater is 500 W with voltage 220
V of alternating electrical current
OPERATION
F 90

STARTING THE ENGINE WITH COOLANT HEATER

Heater enables starting the engine at low ambient temperature by preheating the
coolant. The electrical installation and its protection against electrical shock hazard
must be done according to the proper regulations
1. Plug the heater first.
2. Plug the cable with heater into 220 V electricity after.
With regard to reduction of engine wear when starting at low temperatures, producer
recommends to use heater. The time of preheating depends upon the ambient
temperature (1 to 2 hours are sufficient before supposed starting).
After heating, unplug the electricity first and the heater after.
ELECTRICAL SHOCK HAZARD!
68
F 91