26
Section 4 Maintenance and Lubrication
ZRP44 & ZRP52 Zero Turning Radius Mowers 356-117M
7/14/08
Land Pride
Table of Contents
Burnishing the Electric Clutch
Refer to Figure 4-3
!
WARNING!
Figure 4-3WARNING: To insure maximum performance and
life, it is necessary to burnish the clutch
Burnishing the electric clutch (Fig. 4-4) will develop better
contact between the armature and rotor, helping to
develop higher torque capabilities without slipping. The
warranty on the new clutch will be voided if it is not
burnished properly.
Use the following procedure to burnish the clutch:
1.
Check the air gap between armature and rotor. Gap
should be .012 to .024.
2.
Cycle the clutch on and off 10 times (15 seconds on
and 15 seconds off) with the engine operating at half
throttles, approximately 1500 rpm.
Electric Clutch
Figure 4-3
Access to Engine & Hydraulic Pumps
Refer to Figure 4-5
The pump units are accessed under the seat platform.
Raise the seat platform by releasing the seat latch and
tilting the seat platform up and forward about its hinged
front. A seat platform catch will prevent the seat from
going all the way over. Release the seat platform catch if
more room under the seat is needed and pivot the seat
further forward.
Seat Platform Latch
Figure 4-4
Access to Integrated Pump/Motor
Figure 4-5
!
WARNING!
Always wear adequate eye protection when servicing the
hydraulic system and battery.
Hydraulic System
Refer to Figure 4-6
!
WARNING!
Hydraulic oil escaping under pressure can penetrate skin.
Hydraulic oil may cause infection in a minor cut or opening in
the skin. If exposed to hydraulic fluid, see a doctor at once.
Before applying pressure to hydraulic system, make sure all
connections are tight and all hoses and lines are in good
condition. To find a leak under pressure, use a piece of
cardboard or wood never use your hands. Relieve all pressure
in the system before disconnecting or working on hydraulic
lines. To relieve pressure, lower all attachments and shut off
engine.
Electric Clutch
21062
IMPORTANT: Make certain to place the control arms
in the park brake position and pivot the arm rests
upward before placing the seat platform in the forward
position.
Seat Platform Latch
21062
21065
Seat Platform Catch
