
Section 1 Introduction VR9 Manual
www.rottlermfg.com
1-2
Description
The VR9 machine is designed for resurfacing by grinding wheel of engine valves.
Rottler VR9 valve grinding machine can grind valves from 15 to 60 degree. Variable valve rotation speed
allow the operator to control surface speed for different diameter valves. Solid cast-iron construction
dampens harmonic vibration to eliminate chatter. Valves are held by a precision chuck system with
pneumatic operated quick action. A large capacity cooling removable tank holds 5 gallons / 20 liter of
grinding uid.
Each Rottler Chuck offers a dual system of three hardened steel balls - one towards the front of the
Chuck and another system in the back of the Chuck holding the valve in the portion of that will be running
in the Guide to the valve stem.
This automatically aligns the stem of valve, allowing that the face of the valve to be concentric to the
valve, stem depending on the conditions of the stem.
The Rottler linear Centered system ensures accurate in relation to the stem, alignment based on account
that we are working with a valve in which the stem is between the tolerances for wear, so we could ensure
that the valve seat this concentric ground.
Disclaimer
The VR9 Manual (henceforth to be referred to as the “Manual”) is proprietary to Rottler Manufacturing
LLC. (“Rottler Manufacturing”) and no ownership rights are hereby transferred. No part of the Manual
shall be used, reproduced, translated, converted, adapted, stored in a retrieval system, communicated or
transmitted by any means, for any commercial purpose, including without limitation, sale, resale, license,
rental or lease, without the prior express written consent of Rottler Manufacturing.
Rottler Manufacturing does not make any representations, warranties or guarantees, express or implied,
as to the accuracy or completeness of the Manual. Users must be aware that updates and amendments
will be made from time to time to the Manual. It is the user’s responsibility to determine whether there
have been any such updates or amendments. Neither Rottler Manufacturing nor any of its directors,
ofcers, employees or agents shall not be liable in any manner whatsoever to any person for any loss,
damage, injury, liability, cost or expense of any nature, including without limitation incidental, special,
direct or consequential damages arising out of or in connection with the use of the Manual.
Limited Warranty
Rottler Manufacturing Company Model VR9 parts and equipment is warranted as to materials and
workmanship. This limited warranty remains in effect for one year from the date of delivery, provided the
machine is owned and operated by the original purchaser and is operated and maintained as per the
instructions in the manual.
Tools proven to be defective within the warranty period will be repaired or replaced at the factory’s option.
The products are warranted upon delivery to conform to their published specications and to be free from
defects in material and workmanship under normal use for a period of one year from shipment. Should a
product not be as warranted, Rottler sole obligation shall be, at its option, to repair, correct or replace the
product or to refund the amounts paid for the Product upon its return to a location designated by Rottler.
No warranty shall extend to rapid wear Products (including tooling) or to Products which have been
subject to misuse (including any use contrary to Rottler instructions), neglect, accident (including during
shipment), improper handling or installation, or subject to any modication, repair or service not certied
by Rottler. Rottler shall not be liable for any consequential, direct or indirect damages or for any other
injury or loss. Buyer waives any right, beyond the foregoing warranty, to make a claim against Rottler.