9 SeaStar Hydraulic Fluid
Due to recent upgrades in our steering system components, Dometic recommends use of SeaStar steering fluid only in our hydraulic steering systems. Dometic steering systems have been engineered and validated using our proprietary SeaStar hydraulic steering fluid. SeaStar steering fluid is engineered with a special additive package that contains anti-foaming and anti-rusting agents, anti-oxidants, viscosity stabilizers, corrosion inhibitors, wear additives as well as water emulsification additives. It is highly recommended that SeaStar steering fluid be used to ensure optimum system performance and safety. Use of any non-approved fluid may result in the following; • Higher steering effort, particularly at ambient or lower temperatures and/or over time due to steering fluid degradation and breakdown. • Increased steering slip and/or drift resulting in lost motion. • Foaming or air entrapment causing a bumpy feel during steering. • High rates of moisture absorption causing internal component corrosion. • Scratched steering cylinder bores and shafts due to contamination or elevated wear rates. • Seal degradation — incompatibility with various proprietary seal compounds used in our products. WARNING! Any non-approved fluid may cause serious damage to the steering system resulting in possible loss of steering, causing property damage, personal injury and/or death.
Figure 9-1. HA5430–1L, HA5440–1G, HA5458–5G
PUSH PIN (CUSTOMER SUPPLIED )
FILLER PLUG (REMOVED)
FILLER KIT
DO NOT LET OIL LEVEL FALL BELOW THIS POINT
HELM FILL PORT
Figure 9-2. Optional filler kit part# HA5438.
9-1
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