69J1D11
1-24
1
2
3
4
5
6
7
8
9
Trim-down and tilt-down function
When the PTT switch is pressed to “DN,” the power trim and tilt motor operates the gear pump and
fluid pressure is generated. As a result, the fluid pressure pushes the down-shuttle piston upward,
enters the tilt cylinder upper chamber through the down-main valve, and then pushes the tilt ram
downward.
In addition, the fluid pushes the up-shuttle piston downward to open the up-main valve.
The gear pump draws the PTT fluid from the tilt cylinder and trim cylinder lower chambers, and then
retracts the tilt ram and the trim ram.
Since the fluid pressure from the gear pump is applied to the tilt cylinder upper chamber, the tilt ram
moves downward first.
The hydraulic oil flows into the trim cylinder upper chamber from the reservoir.
When the outboard motor comes in contact with the trim ram, the trim ram moves downward simul-
taneously with the tilt ram, due to its own weight and the suction of the PTT fluid by the trim cylinder
lower chamber.
1
Tilt ram
2
Tilt cylinder
3
Trim ram
4
Trim cylinder
5
Power trim and tilt motor
6
Reservoir
7
Gear pump
8
Up-shuttle piston
9
Up-main valve
0
Down-shuttle piston
A
Down-main valve
È
Return
É
Send
:
:
S69J1440
Technical tips
Summary of Contents for F200C
Page 1: ...F200C LF200C F225C LF225C SERVICE MANUAL 69J 28197 1F 11 LIT 18616 02 76 LIT186160276 ...
Page 47: ...69J1D11 2 10 1 2 3 4 5 6 7 8 9 MEMO Maintenance specifications ...
Page 80: ...FUEL Fuel system 4 3 69J1D11 Intake silencer fuel filter and fuel pump 4 ...
Page 82: ...FUEL Fuel system 4 5 69J1D11 Vapor separator 4 ...
Page 86: ...FUEL Fuel system 4 9 69J1D11 Intake manifold and high pressure fuel line 4 ...
Page 88: ...FUEL Fuel system 4 11 69J1D11 ...
Page 90: ...FUEL Fuel system 4 13 69J1D11 Throttle control 4 ...
Page 101: ...69J1D11 5 2 1 2 3 4 5 6 7 8 9 Piston ring compressor YM 08037 Special service tools ...
Page 102: ...POWR Power unit 5 3 69J1D11 Power unit 5 ...
Page 104: ...POWR Power unit 5 5 69J1D11 ...
Page 106: ...POWR Power unit 5 7 69J1D11 ...
Page 110: ...POWR Power unit 5 11 69J1D11 ...
Page 128: ...POWR Power unit 5 29 69J1D11 Cylinder head 5 ...
Page 130: ...POWR Power unit 5 31 69J1D11 ...
Page 142: ...POWR Power unit 5 43 69J1D11 Cylinder block 5 ...
Page 144: ...POWR Power unit 5 45 69J1D11 ...
Page 172: ...LOWR Lower unit 6 9 69J1D11 Propeller shaft housing regular rotation model 6 ...
Page 178: ...LOWR Lower unit 6 15 69J1D11 Drive shaft and lower case regular rotation model 6 ...
Page 194: ...LOWR Lower unit 6 31 69J1D11 ...
Page 198: ...LOWR Lower unit 6 35 69J1D11 Propeller shaft housing counter rotation model 6 ...
Page 204: ...LOWR Lower unit 6 41 69J1D11 Drive shaft and lower case counter rotation model 6 ...
Page 223: ...69J1D11 7 2 1 2 3 4 5 6 7 8 9 MEMO Special service tools ...
Page 224: ...BRKT Bracket unit 7 3 69J1D11 Bottom cowling 7 ...
Page 226: ...BRKT Bracket unit 7 5 69J1D11 ...
Page 228: ...BRKT Bracket unit 7 7 69J1D11 Upper case steering arm swivel bracket and clamp brackets 7 ...
Page 230: ...BRKT Bracket unit 7 9 69J1D11 ...
Page 232: ...BRKT Bracket unit 7 11 69J1D11 ...
Page 242: ...BRKT Bracket unit 7 21 69J1D11 Power trim and tilt unit 7 ...
Page 244: ...BRKT Bracket unit 7 23 69J1D11 ...
Page 246: ...BRKT Bracket unit 7 25 69J1D11 ...
Page 288: ...ELEC Electrical systems 8 21 69J1D11 Starter motor 8 ...
Page 321: ...YAMAHA MOTOR CORPORATION USA Printed in USA Sep 2003 0 0 1 CR E ...