Ariens 990101, 990106, 990100, 990102 User Manual
Service Letter
Model Description Serial Number
Range
990100
990101
990102
990106
Pro-Master
Rapid XZ 000101 – 999999
Ariens Company
655 W. Ryan St.
Brillion, WI 54110
www.ariens.com
Product Family: Gravely 990-Series Rapid™ XZ
Subject: Driveline Kit Availability
Dealer Action: Service Information
Date: May 11, 2011 No. L-2185A
The Ariens Company will soon be introducing an improved version of the Rapid XZ for 2011. The new
version of this commercial mower will have a more reliable and more smoothly running clutch/PTO shaft
configuration that will feature a constant velocity (CV) drive shaft turning at a slower RPM. Please note that
the size of the driven pulleys on the cutting decks and the sprocket on the snow head are being altered to
maintain the original blade or snow-auger speed. Additionally, the new drive shaft will be better protected
from interference with the weight transfer bar and mowe r deck.
The Ariens Company has also created kits that will allow dealers to retrofit the driveline protection and
speed reduction to the earlier model Rapid XZ units listed above. The kits contain the new drivelines, belts,
pulleys and other parts necessary to make the conversion.
The basic kit, 59003800, contains all the parts necessary to update any model Rapid XZ with a 60" deck.
For Rapid XZ units with a 52" or 72" deck, the basic kit (59003800) along with a supplemental kit will be
necessary to complete the conversion. The chart below details which kits to use for each deck.
Deck Model Deck Size Basic Kit Supplemental Kit
890100 60” 59003800 n/a
890101 52” 59003800 59003700
890102 72” 59003800 59003900
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Date: May 11, 2011 No. L-2185A
Due to the change in driveline RPM, snow thrower attachment 890103 on retrofitted Rapid XZ units will
need to be updated with kit 59004200. This kit contains a different sprocket and chain to accommodate the
new driveline speed.
Production on the basic kit 59003800 will begin in May, 2011. Production on supplemental kits 59003700,
59003900 and 59004200 will begin in July, 2011.
All unsold units should be updated with a retrofit kit combination prior to sale. Dealers will be reimbursed
for 5.0 hours of labor at their standard posted shop labor rate for each kit they install. The flat rate code for
this repair is 90998.
Customers that have had significant drive shaft issues would also benefit from the installation of the kits.
For further information, please contact Gravely Technical Service at 920-756-4688.
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