TM-9-2320-260-34-2
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 2 OF 2
JULY 1994
TM-9-2320-260-34-2 - Page 15 of 863
TM 9-2320-260-34-2
12-6. POWER STEERING TEST AND ADJUSTMENT (Contd)
d. Steering Gear Internal Leakage Test
1.
2.
3.
4.
5.
6.
7.
Start engine (TM 9-2320-260-10) and warm to operating temperature. Let engine idle to end of test.
CAUTION
Power steering oil temperature cannot exceed 200°F (93°C).
Damage to equipment may result.
With engine idling, observe temperature reading on thermometer. Temperature must be 165°-175°F
(74°-79°C). If temperature is not between 165°-175°F (74-79°C), refer to Chapter 2, Mechanical
Troubleshooting, Steering Gear.
CAUTION
Do not hold steering wheel in full turn position for more than
10 seconds. Pump damage may result.
NOTE
Assistant will help with step 3.
With steering wheel (1) at center position, turn steering wheel (1) a half turn to right. Hold steering
wheel (1) for 3-10 seconds.
Observe gage and flowmeter. Gage should read 1350-1500 psi (9308-10342 kPa), if not, refer to
chapter 2, Mechanical Troubleshooting, Steering Gear. Replace steering gear (2) if flowmeter reads
greater than 0.75 gpm (2.84 lpm) (para. 12-5).
NOTE
Assistant will help with step 5.
With steering wheel (1) at center position, turn wheel (1) one half turn to left. Hold steering
wheel (1) for 3-10 seconds.
Observe gage and flowmeter. Gage should read 1350-1500 psi (9308-10342 kPa), if not, refer to
Chapter 2, Mechanical Troubleshooting, Steering Gear. Replace steering gear (2) if flowmeter reads
greater than 0.75 gpm (2.84 lpm) (para. 12-5).
Shut down engine (TM 9-2320-260-10).
12-10
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