Extreme Cold Weather Starting (If Equipped) - JLG 642 Operation & Safety Manual

Section 4—Operation

Extreme Cold Weather Starting (if equipped)

If equipped with extreme cold weather components, machine can be operated in
temperatures of -40°F to 0°F (-40° C to -20° C).
1. Machine must be equipped with heating components and extreme cold weather
fluids. See Section 9—Specifications for fluid details.
2. Locate the two yellow extension cords stored behind seat in cab.
3. Connect the hydraulic tank heater to one extension cord and the battery and block
heaters to the other extension cord. Connect each extension cord to separate A/C
power supplies with a minimum rating of 15 Amps each.
4. Allow the heating components to operate a minimum of 12 hours prior to machine
operation.
5. Follow start-up procedure on page 4-1 and allow engine to idle 20 minutes.
6. Operate all boom functions continuously for five minutes to circulate the warm
hydraulic fluid.
7. Perform "Shut-Down Procedure" on page 4-5.
8. Disconnect A/C power supplies and place back in storage locations.
9. Machine is ready for operation.
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