Operator's ManualSecond Edition · First PrintingPart No. 114475 Z-135/70 39Operating InstructionsStarting the Engine1 At the ground controls, turn the key switch tothe desired position.Deutz models2 Press the glow plug button. The glow plugs willturn on for 30 seconds.3 Press the engine start button. Theengine start button can be pressedat any time while the glow plugsare on. If the engine fails to start ordies, the restart delay will disablethe start switch for 3 seconds.Perkins and Cummins models2 Press and hold the glow plug button.3 Press the engine start button. If the engine failsto start or dies, the restart delay will disable thestart switch for 3 seconds.If the engine fails to start after 15 seconds ofcranking, determine the cause and repair anymalfunction. Wait 60 seconds before trying to startagain.In cold conditions, -6°C and below, warm the enginefor 5 minutes before operating to prevent hydraulicsystem damage.In extreme cold conditions, -18°C and below,machines should be equipped with optional coldstart kits. Attempting to start the engine whentemperatures are below -18°C may require the useof a booster battery.If the machine is stored for longperiods of time in low temperatures(below 0°C) with the secondaryboom raised and extended, theengine may not start due to asystem fault.To remove the fault, hold the auxiliary power buttonand activate the secondary boom up function untilthe secondary boom begins extending.Emergency StopPush in either the ground or platform redEmergency Stop button to the off position to stopall functions and turn the engine off.Repair any function that operates when the redEmergency Stop button is pushed in to the offposition.Selecting and operating the ground controls willoverride the platform red Emergency Stop button.Auxiliary ControlsUse auxiliary power if the primary power source(engine) fails.1 Turn the key switch to ground or platformcontrol.2 Pull out the red Emergency Stop button to theon position.3 Press down the foot switch whenoperating the auxiliary controlsfrom the platform.4 Simultaneously hold the auxiliary power buttonand activate the desired function.