Baroness LM331, Service Manual, Page: 72 / 165

Caution
Before starting pressure measurement, make
sure that there are no people around the
machine.
Important
Carry out measurements of the reel rotation
circuit on a hard level surface.
Before pressure measurement, perform the
following operations.
Install the gauge bulb and high-pressure
hose to the pressure gauge for high
pressure measurements.
1 2 3
g2hgdk-006
Reel Rotation Circuit_002
1
Pressure gauge for high pressure
measurements
2 Gauge valve
3 High pressure hose
Apply the parking brake.
Move the stop valve to the "Open" side, and
then lower all mower units.
Stop the engine.
Remove the rear cover.
Remove the hydraulic pressure
measurement port plug of the stack valve
using an M6 hexagon wrench.
1
2
dmxdti-022
Reel Rotation Circuit_003
1.
[1]
2.
3.
4.
5.
6.
1 Stack valve
2
Hydraulic pressure measurement port
plug
Install a 90-degree elbow 1033-6 to the stack
valve hydraulic pressure measurement port.
Install an hydraulic pressure measurement
tool prepared in advance to the 90-degree
elbow 1033-6.
1
2
3
dmxdti-023
Reel Rotation Circuit_004
1
Pressure gauge for high pressure
measurements
2 High pressure hose
3 90-degree elbow 1033-6
Caution
The wood board must be a stout one.
Make sure that the wooden board can be
attached to the front stay securely.
Insert a stout wood board into the reel cutter
of the left mower unit so that the reel cutter
does not rotate.
1
3
2
dmxdti-024
Reel Rotation Circuit_005
1 Left mower unit
2 Reel cutter
3 Wood board
7.
8.
9.
LM331
Hydraulic system
Page 4-46
Measurement