The only coolant authorized for use in the IHMEE is Ethylene-Glycol. To avoid possible internal
damage to the engine cooling system, use only Ethylene-Glycol coolant.
Ethylene-Glycol is supplied ready to use at the correct concentration and therefore there is no need to
mix it prior to filling the cooling system. Approximately 32 qt. (30 L) of Ethylene-Glycol coolant is
required to totally fill the cooling system.
Check coolant level. Test coolant to ensure that cooling system is protected against corrosion and temperatures
down to -30 °F (-34 °C). Add Ethylene-Glycol coolant (Item 3, Appendix C) if cooling system is not adequately
protected (TB 750-651).
f. Extended Storage Procedures (Vehicle Inactive).
When vehicle is to remain inactive for more than 6 months, long-term storage procedures must be
performed to prevent damage due to rust, corrosion, or organic growth in the fluids.
· When vehicle is to remain inactive for more than 6 months, long-term storage procedures must be
performed to maintain the vehicle warranty.
· To prevent seals and gaskets in the power train and hydraulic systems from failing it is
recommended that every 6 months the vehicle are taken out of storage and started up and driven
until the engines and transmissions reach normal operating temperature and both hydraulic systems
Elevate on suitable safety stands with tires free turning to prevent sidewall damage. Deflate tires and re-inflate
with nitrogen (Item 39, Appendix C) to prevent corrosion.
Prepare suspension as per tie-down procedures by turning MODE CONTROL switch to C130/LIMP position.
After all air is expelled from air bags, turn off isolator valve at each air bag (TM 5-2420-230-10).
Completely lubricate chassis and all ancillary equipment in accordance with (TM 5-2420-230-10).
Main hydraulic and steering hydraulic systems long-term storage: