Yanmar 4LHA-HTP Operation Manual page 617

Chapter 7 Reduction and Reversing Gear
5. Reassembly
5. Connect wires to neutral safety switch and to audio warn-
ing temperature switch. Coat connections on neutral
safety switch with Liquid Neoprene.
a - Neutral Safely Switch
b - Audio Warning Temperature Switch
6. Refer to Removal and Installation, Section 2B-"MIE (In-
board) Models" and install engine with transmission as in-
structed.
Tests to be carried out:
1. Leakages
2. Noise emission
3. Direction of rotation, LH/RH
4. Lube oil temperature
5. Shifting pressure
The function test should be carried out as follows:
Motor speed
rpm
800-1000
600-800
(idling speed)
1500-2500
600-800
(idling speed)
Idling-max. speed
600-800
Idling-max. speed
* Until an oil temperature of 75-80flC (167-176flF) has been reached
Ax
Shift lever
position
neutral
A *-> B position
repeatedly
B position
A < - > B position
repeatedly
A position
from A -> B position
B position
7-2-43
Functional Test
1. Connect a pressure gauge and thermometer to fluid pump
at locations shown.
a - Pressure Gauge (Ml0x1 Thread) - Remove Plug
b - Thermometer (3/8 in. Thread) - Remove Temperature Sender
Typical Hurth Transmission Shown
2. Perform functional tests as shown in chart following.
Refer to "Operating Specifications" for correct readings.
Duration
minutes
1
5
—
1
1
—
1
—
1
—
1
— 1
at different speeds
4LHA Serit
Test
2 5 "
2 3
2 4
2 3
2 5 "
2
2 5 "