SERVICE MANUAL NUMBER 28
TROUBLESHOOTING
Compact Hydraulic Steering
Important Information
Whenever a troubleshooting solution calls for removal from vessel and/or dismantling of
steering system components, such work must be carried out by a qualified marine
mechanic. The following is offered as a guide only and neither Mercury MerCruiser nor the
helm manufacturer are responsible for any consequences resulting from incorrect repairs.
Most faults occur when the installation instructions are not followed and usually show up
immediately upon filling the system. The most common faults encountered and their likely
cause and solution are provided in the following.
Sometimes when returning the steering wheel from a locked position, a slight resistance
may be felt and a clicking noise may be heard. This should not be mistaken as a fault, as
it is a completely normal situation caused by the releasing of the lockspool in the system.
WARNING
Avoid serious injury or death due to FIRE or EXPLOSION. Be sure that engine com-
partment is well ventilated and that no gasoline vapors are present to prevent the
possibility of a FIRE or EXPLOSION.
Helm Becomes Jammed During Filling
Cause
Special Instructions
Make certain that hoses were not kinked
or pinched during installation. If so, the
hose must be removed and replaced.
Blockage in the line between the helm(s)
and the cylinder(s).
System Difficult To Fill
Cause
Cause
Special Instructions
Air in system.
Review filling instructions.
Steering Hard To Turn
Special Instructions
To test, disconnect clevis from steering
lever and turn the steering wheel. If it now
turns easy, correct cause of mechanical
binding. Please note that excessively
loose connections to steering cylinder or
steering lever can also cause mechanical
binding.
Steering cylinder pivot bushings are too
tight or trunion is bent, causing
mechanical binding.
Restrictions in hoses.
Air in hydraulic fluid.
Find restrictions and correct.
See filling and purging instructions.
Wrong hydraulic fluid has been used to fill Drain system and fill with approved
steering system.
hydraulic fluid.
Helm Unit Bumpy - Requires Too Many Turns
Cause
Special Instructions
Replace helm unit.
Dirt in inlet check of helm pump.
INDEX
90-863160
MAY 2000
Page 1C-11
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | MerCruiser Sterndrives 90-863160 |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(1 votes, average: 3 out of 3)
Marine readers have rated Mercury MerCruiser Bravo Outdrives Sterndrives Marine Engines Service Manual Number 28 3.0 out of 3.0 based on 1 product reviews. I could not find any mention of the seawater pump assembly.
Maybe I have the wrong unit