Filling And Bleeding The Power Steering System - Mercury BRAVO Service Manual

POWER STEERING
4. If level is below bottom of dipstick, but fluid is still visible in pump reservoir, add required
If fluid is not visible in reservoir, a leak exists in the power steering system. Find cause and
correct.
Filling and Bleeding
IMPORTANT: Power steering system must be filled exactly as explained in the follow-
ing to be sure that all air is bled from the system. All air must be removed, or fluid in
pump may foam during operation and be discharged from pump reservoir. Foamy
fluid also may cause power steering system to become spongy, which may result in
poor boat control.
1. With engine stopped, position drive unit so that it is straight back.
2. Remove fill cap / dipstick from power steering pump.
3. Add Quicksilver Power Trim and Steering Fluid or Dexron III automatic transmission
IMPORTANT: Use only Quicksilver Power Trim and Steering Fluid or Dexron III auto-
matic transmission fluid (ATF), in power steering system.
4. Turn steering wheel back and forth to end of travel in each direction several times.
5. Recheck fluid level and add fluid, if necessary.
6. Install vented fill cap. Tighten securely.
DO NOT operate engine without water being supplied to seawater pickup pump, or
pump impeller may be damaged and subsequent overheating damage to engine
may result.
7. Start engine and run at fast idle (1000-1500 rpm) until engine reaches normal operating
8. Position drive unit so that it is straight back and stop engine.
9. Remove fill cap from pump.
10. Allow any foam in pump reservoir to disperse.
11. Check fluid level and add fluid, as required, to bring level up to FULL HOT mark on dip-
12. Reinstall fill cap. Tighten securely.
IMPORTANT: Drive unit must be positioned straight back and power steering fluid
must be hot to accurately check fluid level.
13. If fluid is still foamy (in Step 5.), repeat Steps 7. through 12. until fluid does not foam and
Page 6A-10
amount of Quicksilver Power Trim and Steering Fluid or automatic Dexron III transmis-
sion fluid (ATF), through fill cap opening, to bring level up to FULL COLD mark on dip-
stick. DO NOT OVERFILL.
fluid (ATF), as required, to bring level up to FULL COLD mark on dipstick.
temperature. During this time, turn steering wheel back and forth to end of travel in each
direction several times.
stick. DO NOT OVERFILL.
level remains constant.
CAUTION
SERVICE MANUAL NUMBER 28
90-863160 MAY 2000