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→Manual
==Servicing of the Leveling System==
==Servicing of the Leveling System==
===Hydraulic Oil ===
===Hydraulic Oil===
Retract the four leveling jacks before checking oil level. Locate the hydraulic power unit. Clean any dirt away from the breather/filler cap in the oil reservoir. Check that the oil is within (1) inch of the top of the reservoir. The oil should be checked when the vehicle is first purchased and then on'ce every two years. More often if there is an oil leak in the system.
Retract the four leveling jacks before checking oil level. Locate the hydraulic power unit. Clean any dirt away from the breather/filler cap in the oil reservoir. Check that the oil is within (1) inch of the top of the reservoir. The oil should be checked when the vehicle is first purchased and then on'ce every two years. More often if there is an oil leak in the system.
'''''Use Dexron II transmission fluid in hydraulic reservoir'''''. Fill to within 1" of overflowing. Never use brake fluid or hydraulic jack fluid.
'''''Use Dexron II transmission fluid in hydraulic reservoir'''''. Fill to within 1" of overflowing. Never use brake fluid or hydraulic jack fluid.
===Visual Inspection ===
===Visual Inspection===
Periodically inspect the leveling jacks for damaged or missing parts such as pivot bolts, springs, roller bearings or stops. Check the hydraulic lines and wiring for damage or wear. Check that the jacks do not interfere with any part of the vehicle when they are in the horizontal position.
Periodically inspect the leveling jacks for damaged or missing parts such as pivot bolts, springs, roller bearings or stops. Check the hydraulic lines and wiring for damage or wear. Check that the jacks do not interfere with any part of the vehicle when they are in the horizontal position.
===Operational Check ===
===Operational Check===
Review operator manual and confirm that system is operating correctly. Check warning switch operation by extending one jack approximately 4", check that the warning light on the dash came on, retract the jack, then repeat for other three jacks.
Review operator manual and confirm that system is operating correctly. Check warning switch operation by extending one jack approximately 4", check that the warning light on the dash came on, retract the jack, then repeat for other three jacks.
==Manual==
==Manual==
<pdf>File:HWH Computerized Leveling System.pdf</pdf>
<pdf>File:HWH_Computer_Leveling_System_v2.pdf</pdf>