Table Of Contents - Dometic HC4645H Troubleshooting Manual

EN

Table of contents

1 Important safety information ................................................. 1
1.1 Explanation of symbols ..................................................... 2
1.2 Safety considerations and safe operation ............................ 3
2 How to use this manual .......................................................... 5
3 Common terms and definitions ............................................. 5
4 Manual troubleshooting ........................................................ 6
4.1 Loss of fluid/fluid level not visible in helm pump ................... 6
4.2 Helm locks up completely ................................................. 7
4.3 Difficulty purging the air from the system ............................. 8
4.4 Steering wheel(s) are hard to turn at dock ............................ 9
4.5 Steering wheel(s) are hard to turn while underway
(easy at dock) ................................................................. 10
4.6 Steering wheel(s) freewheel(s) to one/both direction(s) ........ 11
4.7 Steering wheel(s) are bumpy when turning either direction ..... 12
4.8 Boat drifts to one side or the other while underway ............. 13
5 Power Assist system troubleshooting .................................. 14
5.1 Steering wheel(s) "lock up" to one or both directions ........... 14
5.2 Power Assist motor runs but NO power assist ..................... 15
5.3 Bumpy feeling at steering wheel(s) with power assist
turned ON ..................................................................... 16
6 System checks ...................................................................... 17
6.1 Checking for air in the steering system ............................... 17
6.2 System pressure test ........................................................ 18
6.3 Cylinder/helm pump check .............................................. 19
6.4 Helm/cylinder & power assist checks ............................... 20
7 Routine maintenance ........................................................... 22
8 Specifications and replacement parts .................................. 24
8.1 BayStar ......................................................................... 24
8.2 SeaStar ......................................................................... 25
8.3 Fitting identification ........................................................ 26
9 Advisory notice ..................................................................... 27
9.1 Power Assist pumps ....................................................... 27
9.2 How to determine if your power assist is affected ............... 27
9.3 How to disable the power assist ....................................... 28
9.4 How to obtain a service kit .............................................. 28
10 How to test the SeaStar power assist .................................... 29
10.1 Test procedure .............................................................. 29
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