Manitowoc 2250 User Manual

Reference Only
Manitowoc Published 06-24-16, Control # 241-01 3-85
2250 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
3
COLD WEATHER HEATER PACKAGE
General
The optional cold weather heater package preheats critical
machinery and lubricant sumps during cold weather
shutdown. See Figure 3-66
for heater components.
When operating in arctic climates, with the outside
temperatures continuously between -18°C (0°F) and -34°C (-
30°F)—the crane should be equipped with the following
heaters, and lubricated with the lubricants listed in Section 5.
Heaters
The heaters operate on 240 V
AC
(single phase) electrical
power supplied through an external power supply. The
heater package includes the following:
In addition to heaters, the following items are provided:
Air dryer (see the Vendor Manual provided with crane)
• Thermostatically controlled radiator fans. Fans are off
until the coolant temperature is at least 77°C (170°F).
The thermostat turns on the fans at 82°C (180°F).
Thermostats
Thermostats turn the heaters on and off at the temperatures
listed below.
Turning Heaters On
If the power supply is disconnected, proceed as follows.
1. Make sure the main circuit breaker and each heater
circuit breaker is off.
2. Make sure the external power supply is off.
3. Connect an external power supply cord to the crane.
4. Turn on the external power supply.
5. Turn on the main circuit breaker.
6. Turn on each heater circuit breaker.
Turning Heaters Off
1. Turn off each heater circuit breaker.
2. Perform the remaining steps only if the power supply
cord will be disconnected or if the electrical system is
being serviced.
a. Turn off the main circuit breaker.
b. Turn off the external power supply.
c. Unplug the power supply cord from the crane.
CAUTION
Machine Damage!
Operating in an arctic climate without heaters can damage
the machine during cold weather startup due to lack of
lubrication.
The heater package may not provide adequate protection
when operating below -34°C (-30°F). Contact the
Manitowoc Crane Care Lattice Team for recommendations.
CAUTION
Hydraulic Pump Damage!
To prevent damage to pumps, warm the hydraulic oil to
16°C (60°F) minimum before operating the crane in an
arctic climate.
Qty Description Voltage
1 Engine Coolant, 4000 watt 240 V
1 Engine Oil Sump, 300 watt 240 V
2 Hydraulic Oil Tank, 500 watt 240 V
2 Battery Pads, 75 watt 240 V
1 Control Console, 150 watt 240 V
1 Brake Pedal, 250 watt 240 V
NOTE: Cranes with an elevated cab are not equipped
with a brake pedal heater.
Heater Heater On Heater Off
Hydraulic Oil Reservoir 16°C (60°F) 27°C (80°F)
Control Console 16°C (59°F) 27°C (77°F)
Battery Pads 10°C (50°F) 16°C (60°F)
Controls and Brakes 10°C (50°F) 16°C (60°F)
WARNING
Electrocution Hazard!
Severe electric shock can cause death or serious injury.
The crane owner/user shall make provisions for turning off
the electrical power supply before connecting a power
supply cord to the crane.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English