Gravely Lawn Mower 991200 User Guide

Date: May 1 2013 No. B-2106  
Service Bulletin  
IMPORTANT!  
Please perform inspection and  
repair as soon as possible.  
Ariens Company  
655 W. Ryan St.  
Brillion, WI 54110  
Product Family: Pro-Turn Mowers  
Subject: Improper Clamping of Engine Pulley and Spacer  
Dealer Action: Update Machines Prior to Sale  
Model Description  
Serial Number Range  
20000 – 21999  
991200 Pro-Turn 48” Kawasaki  
991201 Pro-Turn 52” Kawasaki  
991202 Pro-Turn 60” Kawasaki  
20000 – 21999  
20000 – 21999  
991203 Pro-Turn 60” Briggs & Stratton 20000 – 21999  
991204 Pro-Turn 48” CARB  
991205 Pro-Turn 52” CARB  
20000 – 21999  
20000 – 21999  
Ariens Company has learned that the engine pulley (p/n 07331600) and crankshaft spacer (p/n 04519200) used on the  
Pro-Turn models in the serial number ranges listed above may not be clamped tightly when the clutch is mounted. This  
possible condition is due to variances in the length of the engine crankshaft and the components mounted on the  
crankshaft.  
To eliminate this condition, Ariens has created a clutch spacer kit p/n 59102100. This kit contains a new crankshaft  
spacer (p/n 04519200) and a new clutch mounting bolt (p/n 05900043). See Figure 1.  
The new spacer is slightly longer than the original to ensure that the clutch, spacer, and engine pulley are clamped  
tightly when properly mounted on the crankshaft. The new spacer is gold in color so it can be easily distinguished  
from the original spacer which is black.  
The new clutch-mounting hex bolt is ¼" longer than the original to ensure adequate thread engagement.  
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Instruction Sheet  
Kit Number: 59102100  
PRO-TURN CLUTCH SPACER KIT  
WARNING: FAILURE TO FOLLOW  
INSTRUCTIONS could result in personal injury  
and/or damage to unit.  
Read, understand and follow all safety practices  
in Owner/Operator Manual before beginning.  
Package Contents  
Check contents of kit for parts listed below (figure 1).  
Engine Pulley  
Item  
Description  
Qty Ariens P/N  
1 1-1/8 x 1-3/4 x 1-1/16" Spacer  
2 7/16-20 x 2-3/4" Hex Bolt  
1
1
04519200  
05900043  
Clutch  
Flat Washer  
Figure 2  
7. Apply a thin coat of anti-seize compound to the  
engine crankshaft if none is present.  
8. Install new spacer (item 1) below engine pulley. See  
9. Install clutch and flat washer and secure with  
replacement hex bolt (item 2).  
Figure 1  
10. Tighten hex bolt and torque to 560 – 732 lbf-in.  
11. Install PTO belt.  
Installation  
1. Stop engine and wait for moving parts to stop and  
hot parts to cool.  
2. Remove belt from clutch pulley.  
3. Remove 7/16 x 2-1/2" hex bolt and flat washer  
retaining clutch to crankshaft. Dispose or bolt but  
retain flat washer.  
4. Remove and retain clutch.  
5. Remove spacer below engine pulley and discard.  
6. Clean out crankshaft threads using a 7/16-20 tap.  
© Copyright 2013 • Ariens Company • Brillion, WI 54110  
04686600 5/13 Page 1 of 1  
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