Jacobsen HR 5111, Инструкции по обслуживанию и ремонту

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STEERING
SECTION 6B. FAILURE ANALYSIS
6B-1
6B
PROBLEM PROBABLE CAUSE REMEDY
1. No turning of steering a. Insufficient oil supply. a. Check oil supply.
wheel.
b. Insufficient oil pressure or no b. Check (Section 8R).
oil pressure.
c. Steering relief valve sticking c. Repair, clean and reset the
open or valve set too low. relief valve (Sections 6C and 8R).
d. Mechanical parts binding. d. Grease/repair if required.
e. Tire pressure too low. e. Check (Sections 7 and/or 11).
2. Steering wanders. a. Tire pressure incorrect. a. Properly inflate tires (Section 7C).
b. Loose or worn steering cylinder. b. Tighten or repair (Section 6F).
c. Steering cylinder internal c. Repair (Section 6F).
leakage.
d. Steer wheels out of adjustment. d. Adjust (Section 6D).
e. Improper toe-in adjustment. e. Adjust toe-in (Section 6D).
f. Steering unit leaf springs f. Replace (Section 6C).
broken or weak.
3. Impossible to make the a. Leaf springs. a. Replace leaf springs (Section 6C).
steering go to neutral
position.
4. Backlash. a. Splines of cardan shaft worn or a. Cardan shaft to be replaced
broken. (Section 6C).
b. Leaf springs. b. Replace worn spring (Section 6C).
5. Shimmy. a. Tire mounting nuts loose. a. Tighten (Section 7C).
b. Loose or worn steering linkage. b. Tighten or replace (Section 6F).
c. Steer wheels out of adjustment. c. Adjust (Section 6D).
d. Air accumulator in steering d. Bleed the cylinder.
cylinder.
e. Leaky dual shock valves and e. Repair or replace (Section 6C).
suction valves or broken springs.
6. Lost motion at steering a. Steering wheel loose. a. Tighten (Section 6C).
wheel.
b. No oil in the tank. b. Change with clean oil and bleed
the system.
c. Loosen or worn steering linkage. c. Tighten or repair (Section 6F).
d. Steering cylinder internal d. Repair (Section 6F).
leakage.
e. Steering unit internal leakage. e. Repair (Section 6C).
f. Excessive heat. Hot oil. f. Check oil cooler and clean if
necessary.
7. Hard impacts in steer- a. Incorrect setting of cardan shaft a. Setting to be adjusted
ing wheel in both and gear wheel set. (Section 6C).
directions.