Burnishing the electric clutch, Access to engine & hydraulic pumps, Hydraulic system – Land Pride Razor Pro ZRP52 User Manual

Page 28: Warning, Table of contents burnishing the electric clutch

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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

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