Yanmar 3JH4E, Operation Manual

Page: 53 / 142

2. NOTICE: NEVER shift the marine gear
at high engine speed. During normal
operation, the marine gear should only
be shifted with the engine at idle. When
moving the handle between
FORWARD (Figure 2, (1)) and
REVERSE (Figure 2, (3)), bring the
clutch to NEUTRAL (Figure 2, (2)) and
pause before slowly shifting to the
desired position. Do not shift abruptly
from FORWARD to REVERSE or vice
versa.
Switching to Trolling (KMH4A
only)
Use the trolling handle to begin trolling.
When changing from FORWARD or
REVERSE to trolling, the speed of the
propeller revolution will be reduced to a
minimum.
NOTICE: When trolling, do not increase
engine speed above 1000 rpm. This may
cause premature wear and damage to the
clutch.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
0004498
Figure 3
1 – Cable Fitting
2 – Trolling Lever
3 – Low Speed (Trolling)
4 – High Speed
5 – Loosen
6 – Tighten
7 – Normal Operation (High Speed)
8 – Trolling (Low Speed)
1. Operation continues at low engine
speed of 1000 rpm or less.
2. Reduce the speed by moving the
trolling handle from high speed (H)
(Figure 3, (4)) to low speed (L)
(Figure 3, (3)). Adjust the speed to the
desired rate and secure the trolling
handle in place.
3. Before returning to normal operation,
be sure to put the trolling handle in high
speed (H) position.
4. Increase engine speed and continue
normal operation.
ENGINE OPERATION
JH4 Series Operation Manual 47