Cat 72H Pipelayer Operation and Maintanence Manual – PDF DOWNLOAD

Page 97

97 Operation Section (D6T LGP (OEM)) Engine Starting

WEBM1000

Engine Starting Engine Starting 133

4. Turn key start switch (3) to the ON position. The monitoring system performs an automatic self test. The action alarm sounds and all of the indicator lights come on briefly. The indicator light for the parking brake will stay on until the parking brake is released. If the attachment controls are locked out, the indicator light for the hydraulic lockout control will stay on until the controls are unlocked. The indicator light for the auto kickdown will stay on until the function is unselected. If the system detects a fault, check the electrical system. Make all of the necessary repairs before you start the engine. 5. Before you start the engine, check for the presence of bystanders or maintenance personnel. Ensure that all personnel are clear of the machine. Briefly sound the forward horn before you start the engine. 6. Turn start switch key (3) to the START position. Crank the engine. Release the key when the engine starts.

Illustration 133 Location of battery disconnect switch (A)

1. Turn the battery disconnect switch to the ON position. The battery disconnect switch is inside of the access door in front of the battery compartment on the left side of the machine. 134

NOTICE Do not crank the engine for more than 30 seconds. Allow the starter to cool for two minutes before cranking again. Turbocharger damage can result if the engine rpm is not kept low until the oil gauge display verifies that the oil pressure is sufficient.

Ether Starting Aid (If Equipped) Ether Starting Aid – The machine may be equipped with an ether starting aid. The ether starting aid is continuously available to the engine for cold weather starting. The engine ECM will determine automatically when the premeasured amount of ether injects the engine air intake. This action will occur during the engine starting procedure. The indicator light indicates that the relay for the ether aid is being activated. For starting below the approximate temperature of  1 C (30 F), the use of the ether starting aid is automatic. Continue the procedure for Engine Starting.

Illustration 134

2. Move direction selector (2) to the NEUTRAL position. 3. Engage parking brake (1).

For starting below 18C (0F), the use of the cold weather starting aids is recommended. Lighter viscosity fluids, a jacket water heater, a fuel heater, or the heavy-duty starter may be required.


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