JLG 1250AJP Service Manual - Manual (Page 160)

SECTION 3 - 1CHASSIS & TURNTABLE
3-112 – JLG Lift – 3121171
3.25 COLD WEATHER PACKAGE
As an option, a cold weather package is available to allow
the machine to be operated in lower temperatures. The
package consists of battery heaters, a hydraulic tank
heater, Exxon Univis hydraulic oil, and diesel fuel condi-
tioner. See Figure 3-61., Cold Weather Package.
3.26 ENGINE
NOTE: Refer to the engine manufacturer’s manual for
detailed operating and maintenance instructions.
Glow Plugs
If the glow plug option is enabled in the JLG Control Sys-
tem, the glow plug and indicator lamp will be energized
when the Power/Emergency Stop switch is pulled on if the
ambient air temperature is less than 50° F (10° C) and the
engine coolant temperature is less than 140° F (60° C).
This determination will occur one second after the Power/
Emergency Stop switch has been pulled on. The lamp
and glow plugs will remain energized for the period of
time specified by the setting in the JLG Control System.
Engine start shall be disabled during this period. On Deutz
engines, the glow plugs will continue (post glow) after the
engine has started for three times the machine digit set-
ting.
Checking Oil Level
1. Switch the engine off before checking oil level.
2. Make sure the machine and engine are level.
3. Remove the oil dipstick.
4. Wipe the dipstick with non-fibrous, clean cloth.
5. Insert the dipstick to the stop and remove again.
6. Check the oil level, and if necessary, top the oil level
up to the MAX mark with an approved grade and
type of oil as outlined in the engine manufacturer’s
operator’s manual.
7. Replace the dipstick making sure that it is fully
seated in the dipstick tube to seal off the crankcase.
Changing Engine Oil
1. Allow the engine to warm up. The engine oil should
reach approximately 176° F (80° C).
2. Make sure the machine and engine are level.
3. Switch off the engine.
4. Place an oil tray under the engine.
5. Open the oil drain valve.