Boston Whaler 25 Guardian Series, Operation & Maintenance Manual

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6-15
Boat Maintenance Section 6
Every six months, a qualified marine technician
should check the following items:
• Check fluid level in the helm reservoir.
• Check outboard engine tilt tubes for salt deposits
or signs of corrosion. Clean and grease as
required.
• Check and grease slider assembly on front of the
engine steering cylinder assemblies.
• Check mechanical linkage and connections.
• Tighten loose parts and replace any worn items.
• Check all self-locking fasteners and locking tabs
for tightness.
• Check system for hydraulic fluid leaks. Refill and
purge system as necessary.
• Check steering hoses for signs of chafing, cuts,
and leaks. Replace any steering hose that shows
signs of damage.
• Inspect the bilge, console interior, and splashwell
for signs of leaking hydraulic fluid.
Approved Steering Fluids
The following fluids are approved for use in this man-
ual hydraulic steering system:
• Sea Star HA-5430
• Texaco H015
• Aero Shell #41
• Esso Univis N15 or J13
• Chevron Aviation fluid A
• Mobil Aero HFA
• Any MIL SPEC H-5606-C fluid
Dexron II automatic transmission fluid may be used in
an emergency.
!
WARNING
Never use brake fluid in your manual hydraulic
steering system. Brake fluid will damage the
system and can cause loss of steering control.