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Section 3 Adjustments
03/11/03
Z52®, Z60® & Z72® Zero Turning Radius Mowers Accu-Z 356-005M
Land Pride
8. Rotate the tire and at the same time rotate the
turnbuckleto shorten the length of the brake linkage to
increase the brake pressure. When you feel the brake
begin to engage, stop adjusting the turnbuckle. Re-
tighten the jam nuts on the turnbuckle.
9. Place the control lever in the park brake slot. Refer to
Figure 3-9.The tire should not rotate when the control
lever is in the park brake position.
10. Place the control lever in the neutral position. The tire
should rotate freely.
11. Close the hydraulic pump’s bypass valve.
12. Repeat steps 3 thru 11 for the other side.
13. Remove from the jack stands and lower the unit. It is
now ready to operate.
Hydraulic Pump Belt Adjustment
Refer to Figure 3-11.
The pump drive belt tension remains constant by means
of a tension idler and spring. There is no tension
adjustment of this belt.
Deck Drive Belt Adjustment
Refer to Figure 3-12:
The spindle belt tension remains constant by means of a
tension idler and spring.
The spring tension should be such that the belt does not
slip under normal operating load conditions, assuming the
belt isnot excessively worn ordamaged. As belt stretches
and wears in, adjustment may become necessary. To
increase belt tension, movethe spring chainone (or more)
link(s) at theanchor bracket(Figure 3-12). Installed spring
length should be 9" + or - 3/8" originally with adjustments
of 5/8" per chain link.
Engine RPM Setting
The Accu Z is designed so that the engine will run at 3600
rpm static pump load only. At this speed the hydraulic
pumps are running at their maximum rated speed.
Deck Leveling and Height Adjustment
The mower deck has three areas that may need to be
checked and adjusted periodically. Before considering
any mower deck leveling adjustments, check that the tire
air pressure is within the specified range.
Pump Belt Adjustment
Figure 3-11
19086
Spring
Pump Drive
Belt
Tension
Idler
Chain
Anchor
Bracket
Tension
Idler
Spring
Drive Belt Adjustment
Figure 3-12
19087
IMPORTANT: Do not over tension the spring to
compensate for a badly worn belt or pulley.
Spring Tension
Figure 3-13
19091