Manual Troubleshooting; Loss Of Fluid/Fluid Level Not Visible In Helm Pump - Dometic HC4645H Troubleshooting Manual

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4 Manual troubleshooting

4.1 Loss of fluid/fluid level not
visible in helm pump
Causes
A. Leak in steering system.
B. Air remaining in system/system not properly bled originally/fluid level
set too low.
Solutions
WARNING!
Repair all leaks prior to use.
A. Check all fitting connections, hoses and steering components for any
signs of a leak. See system pressure test on page 18 to pinpoint
source of leak.
B. Bleed system free of air. Reference "Checking for air in the steering
system" on page 17. Fluid level is to be set be tween 1/4" – 1/2"
below the filler port threads.
Refer to section 4.3 If having difficulty purging.
NOTICE!
When using an unbalanced cylinder the fluid level is to be set and
inspected with the cylinder shaft fully "retracted". Failure to have cylinder
rod fully retracted will result in fluid leakage at the helm filler port.
Root Causes
• Damage to a cylinder shaft (dings, dents, corrosion and/or scratches)
will lead to the tearing of a seal resulting in a leak. Replace any damaged
shaft and/or end gland.
NOTICE!
Replacement shafts are not available for purchase. Contact Authorized
Service Center for repair, or, replace steering cylinder(s).
EN