Torque Fuel Delivery; Reverse Angleich Spring Adjustment - Yanmar MP series Service Manual

Torque Fuel Delivery
Torque fuel delivery adjustment requires
adjustment of the fuel limiter torque spring
(Figure 6-7, (3)) or angleich, when applicable.
1. Set the pump speed at the torque rise speed
(See Calibration Data Sheet) and move the
control lever until it contacts the high idle speed
limit bolt.
If the fuel limiter assembly has a torque spring:
Screw in the fuel limiter torque spring
adjustment screw (Figure 6-7, (4)) to obtain
the specified injection amount (See Calibration
Data Sheet) and fasten the lock nut.
ADJUSTMENT
Reverse Angleich Spring Adjustment
Note:) Do not thread past the reverse angleich
lever or the reverse angleich lever will
move in a direction of fuel reduction.
1.
With the pump stopped, remove the governor
housing rear cover (Figure 6-9, (1)) and adjust
the angleich assembly (Figure 6-8, (1)) until
contact is just made with the reverse angleich
lever (Figure 6-9, (4)).
2. Shift the control lever to the high idle position.
Set the fuel pump speed to the specified torque
rise RPM number. (See Calibration Data
Sheet).
00034651
Figure 6-8
3.
Set the angleich assembly to the specified
injection quantity. (See Calibration Data Sheet).
4. Tighten the lock nut (Figure 6-8,
(2))
to
24.5
-
29.4 N-m (2.5
-
3.0 kgf.m).
0003465p
Figure 6-7
If the fuel limiter assembly does not have torque
spring:
See Reverse Angleich Spring Adjustment on
this page.
YANMAR,
MP
series service
Manual