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88M Module B – Questions & Comprehensive Answers
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88M Module B – Questions & Comprehensive Answers
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88M Module B – Questions & Comprehensive AnswersWhat acts as a primary fuel filter and removes and water from fuel before
entering engine? Right Ans - Fuel/water separator
What type of engine does the LHS have? Right Ans - Caterpillar 4 stroke, In-
line Six Cylinder Diesel
What consists of a dry type air cleaner, turbocharger, engine blower and an
after cooler? Right Ans - Air Intake System
Fording depth of the M1120A4 Right Ans - 48 inches for 5 minutes
Normal operating range of all models Right Ans - 300 miles
How much fuel does the LHS carry? Right Ans - 154 gallons
What is the Gross Combination Weight Rating of the LHS? Right Ans -
109,000
What is the cruising Range at GCWR? Right Ans - 300
What is the Maximum Side Slope w/Adequate Traction surface (percent)
Right Ans - 30%
What is the Maximum Towed Speed? Right Ans - 15 mph
What are the Approach and Departure Angles? Right Ans - 32 and 43
What is the Limp Home Speed? Right Ans - 10 mph for 30 minutes
What is the towing eye? Right Ans - 4 (2 front, 2 rear) Max load capacity
each: 60,000
What is the Pintle Hook Type? Right Ans - Manual Release
What is the max Load Capacity? (Pulling) (lbs) Right Ans - 30,000 lbs in off-
road application
, How many Brake chambers in the Brake System? Right Ans - 8
Once air pressure in reservoir 1 rises above ______ to _____ psi, a valve opens.
Right Ans - 65-75 psi
What illuminates red when transmission pump temperature is above 482
degrees F, or torque converter temperature is above 350 degrees F? Right
Ans - High Transmission Indicator
When does the Brake System Failure (Low AIR) indicator turn red? (psi)
Right Ans - When the Either FRONT or REAR Air Pressure Gauge falls below
70 psi
What is the maximum lifting capacity (lbs and tons) Right Ans - 24,000
lbs / 11 tons
What applies and releases vehicle parking brakes and automatically applies
parking brake when air pressure drop below 30 psi? Right Ans - Parking
brake control
When do you operate a vehicle with suspension dump? Right Ans - Never
What factors can reduce the 300 mile operations range of the M1120A4?
Right Ans - prolonged idle, climate conditions, use of PTO, and off road driving
What is the maximum sustained forward speed? Right Ans - 62mph in 5th
gear (1,696 rpm)
How long should you wait for the hydraulic reservoir to cool down? Right
Ans - 1.5 hours
The manual transit position (man trans) is used when? Right Ans - when
the automatic circuits have failed
The transfer case has how many positions? What are they? Right Ans - 3;
high, low, neutral
What is the normal range for the air pressure gauge? Right Ans - 100-130
psi
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