Terrco 7500 User manual

Terrco®, Inc.
Model 7500
OPERATING INSTRUCTIONS
MAINTENANCE INSTRUCTIONS
Terrco®,Inc.
222 1st Avenue NW • Watertown, SD 57201
Phone: [phone] • Fax: [phone] • Email: [email protected]om
ILLUSTRATED PARTS LIST

OPERATINGAND MAINTENANCE INSTRUCTIONS
Introduction
This manual has been prepared to assist and instruct you in the proper maintenance and operation of
your machine. Please bear in mind that you TERRCO®7500 machine is a precision piece of machinery
manufactured to exacting standards. In order for you to obtain maximum use of your machine, we sug-
gest that you read this manual completely and thoroughly before attempting to operate your machine.
When ordering parts always give the machine number and model number along with the part number to
ensure you get the correct part.
PRELIMINARY PROCEDURES TO FOLLOW BEFORE PUTTING THE
MACHINE IN OPERATION FOR THE FIRST TIME
A. Delivery of Machine
1. On delivery the contractor should very carefully examine the shipping crate to see that is has
not been mishandled. Before accepting the shipment, uncrate the machine and very carefully
examine same to see that no part of the machine is damaged. If damage is noted, request an
inspection immediately and request a copy of the claim report. When accepting the machine
from the delivering carrier, note the damage on the bill of lading before signing same.
2. TERRCO®will not honor any claims for broken, damaged or missing parts that may have
occurred in shipping, as each machine is checked and inspected for same before leaving our
plant.
B. It is not necessary to lubricate the machine as the machine is fully lubricated at the
factory.
ON THE JOB INSTRUCTIONS
A. Installation Instructions
Stones and Clips
1. Remove the weights.
2. Using the flop handle, tip the machine back to the floor so that the handle lays on the floor.
3. Clean stone mounting surface.
4. To install the 2” diameter plug stones, push stone in hole and give the stone a twist to be
certain it is securely in place. The diamond plug stones are installed the same way with the
addition of inserting the safety clip.
5. After the stones are installed raise the machine until it is in operating position with all stones
on the floor and replace the removable weights.
6. CAUTION! NEVER ATTEMPT TO START THE MACHINE WHILE LOWERING TO
THE FLOOR, AS THE REAR STONES WILL STRIKE ON THE CORNERS RESULTING
IN THROWN STONES AND POSSIBLE DAMAGE TO THE MACHINE.

B. Electric and Plug in Instructions
1. General Instructions
a. Always operate your machines with ground faults wired at the electrical source.
b. Low voltage is a common occurrence on many terrazzo jobs, and hence it is necessary
that the terrazzo contractor know his incoming voltage and amperage at the machine.
We also recommend a good, reasonably priced voltammeter instrument for each con
tractor and that he as well as his foreman know how to operate same.
c. As a result of the low voltage and the use of a 230 Volt motor, Terrco®has installed a
booster box with pre-wired plugs already connected to your machine.
d. If the machine is to operate on an area more then 100 feet from the electrical source it
will be necessary to use the next lower number (larger) size cable from the source to the
100 foot wire cable that was furnished with the machine.
e. If additional cable is necessary, be sure all connections are of the proper size and that
they are tight
f. As a final step before starting the machine, we strongly recommend that a voltage
reading is taken; this requires a very few minutes time and could save a great deal of
trouble.
GENERAL MAINTENANCE AND REPAIR INSTRUCTIONS FOR YOUR TERRCO®7500
A. The Lubrication of the Machine
1. The lubrication of the gear case.
a. The main gear case contains 15 lbs. of Mobilith AW-1 grease.
b. Gear case grease level must be checked once a week. The level of grease in the gear
case should be up to half the thickness of the helical gears (Ref. No. 32 on the parts
diagram).
2. The lubrication of the wheel bearings.
a. Use grease gun and grease once a month, (fitting Ref. No. 11 on the parts diagram) on
each wheel with Mobilith AW-1 or equivalent.
b. Be sure to pump enough grease into the wheel bearing. Keep pumping until grease
starts coming through shaft clearance in the inner bearing cap.
3. Location of other grease fittings.
a. Four fittings on bearing caps on top of gear case (Ref. No. 11). Lubricate these fittings
with Mobilith AW-1 or equivalent monthly.

B. Keeping Machine Clean
1. Daily schedule after each day’s grinding
a. Tilt machine back on handle.
b. Clean under carriage with water using garden hose and nozzle
2. Do not let any cake-up of cement grinding paste occur as this could create an overload on your
machine.
C. Replacement of Worn, Damaged or Missing Parts
1. Advantages
a. If worn parts (bearing, gears, etc ) are not replaced promptly , serious damage to your
machine could occur.
b. Your machine will operate more efficiently with new Terrco®parts.
2. Use only authorized TERRCO®parts as our warranty will not apply if other than factory
authorized TERRCO®parts are used.
D. Morflex Flexible Coupling
1. Bolts, (Ref. No. 44, 48), should be checked weekly for tightness. Loose bolts cause extreme
vibration and premature failure of rubber inserts in the couplings.
2. Your flexible couplings (Ref. No. 46) should be changed a minimum of once a year whether you
use your machine or not.
E. Stone Wear and Replacement
1. Check your stones for wear periodically, as the stones may be worn flush with stone holder lugs
and the operator may be grinding with the steel stone spiders.
2. When changing stones it is recommended that you use 2” diameter plug stones.

Model 7500

WARRANTY CLAIM PROCEDURE
Each new machine is covered by two separate, distinct warranties—one on
the machine and one on the electric motor of gasoline engine. Read VERY
CAREFULLY the Terrco® warranty covering the machine, as this will tell you
whether you have a warranty claim or not. If your machine is under warranty and
malfunctions, determine whether your problem is electrical or mechanical, and do
the following:
I. Electrical.
A. Consult the list of authorized motor repair stations sent with the
machine and locate the station nearest you.
B. Contact the repair station, giving them the following information:
1. Complete nameplate date from the motor.
2. Tell them that the machine is a terrazzo grinding and
polishing machine.
3. Give them a description or rundown of the trouble.
4. Inform them of the voltage and amperage readings as
outlined in paragraph II, B, 2 and 3, on page 2 of this
manual.
II. Mechanical
A. Contact your Terrco®Distributor giving them the following:
1. Model and date purchased.
2. Horsepower.
3. Accurate description of the malfunction.
B. If there is no Terrco®Distributor in your area call or write to us
with the above information.

LIMITED ONE YEAR WARRANTY
TERRCO®, Inc. warrants the original purchaser of the Terrco®grinding
equipment to be free from defects in materials and workmanship under normal
use and service. Our obligation under this warranty shall be limited to the repair
or exchange of any part or parts which may prove defective under normal use and
service within one year from date or purchase by, the original purchaser, and
which our examination shall disclose to our satisfaction to be defective.
All equipment returned for repairs or exchange must be returned to: TERRCO®,
Inc., at the purchaser’s expense and within the warranty period. All repaired or
exchanged equipment will be shipped back to the purchaser F.O.B. Watertown,
South Dakota.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRATNIES
EXPRESSED OR IMPLIED INCLUDING THE WARRANTIES OR
MERCHANTABILITLY AND FITNESS FOR USE AND ALL OTHER
OBLIGATIONS OR LIABILITIES ON THE PART OF TERRCO®, INC. AND
WE NEITHER ASSUME OR AUTHORIZE ANY OTHER PERSON TO
ASSUME FOR US, ANY OTHER LIABILITY IN CONNECTION WITH THE
SALE IF THIS EQUPIMENT. SOME STATES DO NOT ALLOW THE
EXCLUSIONS OR LIMITATIONS ON IMPLIED WARRANTIES OR DO NOT
ALLOW THE EXCLUSION OF LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE EXCLUSIONS OR
LIMITAIONS MAY NOT APPLY TO YOU. THIS WARRANTY SHALL NOT
APPLY TO ANY EQUIPMENT OR PART THEREOF WHICH HAS BEEN
SUBJECT TO ACCIDENT, NEGLIGENCE, ALTERATIONS, ABUSE,
MISUSE, OR IMPROPER MAINTENANCE. TERRCO®, INC. MAKES NO
WARRANTIES WHATSOEVER IN RESPECT TO ACCESSORIES OR PARTS
NOT MANUFACTURED OR SUPPLIED BY US.