Terrco 3100 Series User manual

Terrco®, Inc.
Model 3100 Series
OPERATING INSTRUCTIONS
ILLUSTRATED PARTS LIST
MAINTENANCE INSTRUCTIONS
Terrco®, Inc.
222 1st Avenue NW • Watertown, SD 57201
Phone: [phone] • Fax: [phone] • Email: [e-mail]
3100 LP Motor 3100 Electric Motor

Terrco® Model 3100
Terrco®, Inc.
 222 1ST AVE. NW  WATERTOWN, SD 57201
 PHONE: [phone]  FAX: [phone]
 EMAIL: [e-mail]
 WEBSITE: www.terrco.com
 Optimal for jobs exceeding 10,000 sq. ft.
 Despite the weight and size the 3100 3-P can be
easily maneuvered by a single person
 Movable weights for easy one person operation
 Four 42 lbs. Pocket Weights
 Magnetic Starter or Variable Speed Drive
 Mild Steel or Stainless Steel Guards and Water
Tanks
 Wet/Dry Setup
 Direct Drive, No Belts
 Mastic removal rate of 500 sq. ft. per hour
 Thin-Set removal rates of 500 sq. ft. per hour
 Thin-Mil coatings removal of 200 sq. ft. per
hour
 Concrete polishing rates of 1,100 sq. ft. per
polishing pad
 Rough Terrazzo rate of 1,200 sq. ft. per day
PRODUCTION RATES
Motor 25 HP, 3 Phase, 60 Hz,
220/440 Volt
Abrasive Pressure
on Discs
Weights up– 800 lbs
Weights down– 1090 lbs.
Speed of Discs 60 Hz– 2480 S.F.P.M
each disc
50 Hz– 2066 S.F.P.M
each disc
Sweep of Discs 28” x 28”
Stone Shape FR594– 2” diameter plug
stone
Width of Machine 30 3/4”
Length of Machine 72 1/4”
Weight of Machine 1425 lbs.
Shipping Weight of
Machine
1625 lbs.
Water Tank 20 gallons
Power Cord 100 feet (4-4)- 230 Volt
100 feet (6-4)- 460 Volt
Terrco®3100 LP - Gas
Terrco® 3100-3P Electric
Motor 38 H.P. Zenith
LP Tank 33# Horizontal & Vertical
Liquid Withdrawal
Clutch Heavy Duty Disc Type
(Dry)
Speed of Discs 2008 S.F.P.M. each disc
Sweep of Discs 28" x 28"
Width of Machine 30 3/4"
Length of Machine 72 1/4"
Height of Machine 58 1/2" (without exhaust
pipe)
Machine Net Ready
to Use
1500 lbs. (without LP
tank)
Shipping Weight
Domestic Crated
1675 lbs.
Water Tank 20 gallons

---------------------------------
SAFTY PRECAUTIONS
-----------------------------------------------------------
This machine is intended for commercial use. It is designed
exclusively to grind and polish Terrazzo and concrete floors.
Use only recommended accessories and abrasives.
When the machine is in need of repair, use only Terrco parts.
All operators must read, understand and practice the following
safety precautions.
WARNING: Rotating grinding wheels can cause injury, keep
hands and loose clothing clear.
WARNING: Disconnect power at the machine before servicing
or changing grinding stones.
WARNING: Always check ground (earth) connection prior to
operating machine.
For Safety:
1: Have electrician hook up power to machine.
2: Always operate machine with ground fault protection.
3: Eye, hearing and respiratory protection advised.
4: Service and adjust guards for maximum protection. Never remove the guards.
5: Keep machine clean and properly serviced.

SAFETY PRECAUTIONS WHEN RUNNING
TERRCO GRINDERS
A.Have a qualified electrician hook up correct power
to the machine, grounded properly, with correct
breakers at electrical source.
B.When breaking down machine to change stones or to
check machine always disconnect power to the
machine.
C.Check for wear to ensure no exposed wires.
D.When grinding wet, employees must wear proper
footwear.
E.Always wear appropriate safety protection such as
eyewear, hearing and if needed respiratory
protection.
F.When grinding, watch for problems on the floor such
as bad joints, electrical covers, studs that can cause
injury to operator or machine.
G.Keep machines clean so any potential problems are
visible.
H.When using base machines, use guards for wet or
dry grinding.
I. Also when using base machines, operate with
flexible shaft and housing as parallel to motor as
possible to avoid kinks. Keep flex-shaft greased.

Operating Instructions
Introduction
This Manual has been prepared to assist and
instruct you in the proper operation and
maintenance of you machine. Please bear in
mind that your Terrco® 3100 is a precision
piece of machinery manufactured to exacting
standards. In order for you to obtain maximum
use of your Terrco® 3100, we suggest that you
read this manual completely and thoughly
before attempting to operate your machine. A
parts diagram adm parts refenence sheet are
included to assist you in ordering the proper
parts. Always give the machine number and
model number when ordering repair parts.
PLELIMINARY PROCEDURES TO FOLLOW
BEFORE PUTTING THE 3100 IN OPERATION
FOR THE FIRST TIME.
A. Delivery of the Machine
1. On delivery, the contractor should very
carefully examine the shipping crate 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 Freight Bill
before signing. TERRCO® WILL NOT honor
any claims for broken, damaged, or missing
parts that may have occurred in shipment, as
each machine is checked and inspected for the
same, before leaving our plant.
B. Installation and Replacement of Grinding
Stones
1. Move the counterbalancing weights to the
upper weight baskets.
2. Using the flop handle, tilt machine back
so that the caster wheel rests on the floor.
3. Clean mounting surface both on plug
stone and stone holder. On 2” or 3” diameter
plug stone, push stone in the hole and give the
stone a slight twist to be certain it is securely in
place.
4. Grasp machine handle and lower machine
to the floor slowly so that all stones are resting
on the floor. Make certain no stones have fall-
en or loosened while lowering the machine to
the floor.
C. Transport of Machine
1. With counterbalancing weights in the
upper weight baskets, tilt the machine so that
the caster wheel is firmly on the floor. You can
use the flop handle to pull the machine or you
can fold the flop handle over and push from
gear case side.
D. To operate the 3100
1. Disconnect electrical source.
2. Install stones per instructions in #1B.
3. After stones are installed, lower the
machine until it is in operating position.
CAUTION - Never attempt to start the machine
while lowering machine to the floor, as rear
stones will strike on corners resulting in thrown
stones and possible damage to the machine.
4. Before plugging into the electrical
system, check the voltage at the source. The
minimum acceptable voltage is (210/420 Volt,
60 HZ, 3 phase), or (380 Volt, 50 HZ, 3 Phase).
Anything lower than this can result in blown
heaters and possible motor burnout.
5. If the machine is to operate in an area
more than 100 feet from the source, it will be
necessary to use the next larger size cable (#4-
4) from the source to the 100 feet of #6-4 wire
cable that was furnished with the machine.
6. After you have the cable in place, relieve
pressure on the stones by applying your weight
on the handle and push the start button on the
starter switch, then releasing pressure on the
handle to lower the machine to the floor.
7. We recommend that the first pass over
the floor be made with the weights in the upper
weight baskets. After the floor is “roughed”
out, move the weights to the weight baskets
located on the gear case for maximum abrasive
pressure.
8. Be sure to periodically check stone wear,
to prevent grinding with the steel plugs, rather
than the stones.

E. To Start the 3100 LP Propane
Engine
1. A 33 lb. special combination vertical-
horizontal propane cylinder liquid withdrawal
Model No. TU33L, must be used on this
machine fitted with a Rego #7141 male fitting.
The Terrco® 3100LP operates on the liquid
principle.
2. When installing tanks, the bottom guide
hole near the top of the cylinder must drop over
the locating pin on the cylinder bracket of the
handle. Connect quick coupler to the cylinder.
DO NOT USE A WRENCH - only hand tight-
en.
3. You are now ready to open main gas
valve in fuel tank. CAUTION - “SLOWLY”
open main gas valve in the fuel tank. An abrupt
full opening of the valve will induce dirt from
within the tank to enter the fuel line. Too rapid
an opening can also cause frost to form on the
fuel filter, main valve, and inlet line. CHECK
FOR GAS LEAKS WITH SOAP SUDS
SOLUTION. THERE MUST BE NO LEAK.
4. Check oil level of crankcase.
5. Make certain clutch is disengaged.
6. Place weights in the “up” position.
7. Attach battery cables from starter to the
battery.
8. Pull throttle knob a quarter to half way
out.
9. Pull out ignition switch to “on” position
and press rubber start button to start.
10. Allow engine to warm up approximately
10 minutes.
11. After a few minutes of warm-up and
with weights in the upper weight baskets, pull
throttle lever out to full open position, apply
weight on the handle to relieve pressure on
stones and engage clutch (pull clutch handle
towards you).
NOTE: We recommend that for the first eight
hours the machine be operated with the weights
in the upper weight baskets to allow engine to
break in without undue load factor.
12. After the initial eight hour engine break
in period, we suggest that on all future opera-
tions, that you make your first “rough” grind
operation with the weights in the upper weight
baskets. You can then lower the weights to the
lower weight baskets for the remaining portion
of the rough grinding operation.
13. There may be excessive oil consumption
during the first 10 days of operation during the
break in period. If oil consumption is over 1
quart per day, contact you local AUTHORIZED
WISCONSIN repair station.
14. CAUTION Do not operate Terrco®
Starting the 3100LP

General Maintenance for your TERRCO® 3100
A. Gear Case
1. Ref. #10 - Four grease fittings
to be greased with 3 shots of Mobilith AW1 or
the equivalent every six months.
2. Ref. #29 - The main gear box
contains 28 pounds of Mobilith AW1. Check
the level once a year by removing plug at the
front of the gear case. Grease should be half-
way up on the drive upper gear. DO NOT FILL
TO THE TOP. The drive gear must not be
covered, as you will create a condition of
extreme pressure with resultant seal damage
and grease leakage.
B. Spark Plugs
1. Every 100 hours or every two weeks
check spark plug gap and reset. Use D9J
(Champion) for LP gap at 0.030”.
C. Air Filter
1. Clean everyday.
D. Clutch (Dry) Special Feramic Face.
1. Your clutch will need adjustment if
your clutch shows evidence of slipping or
overheating.
2. To adjust clutch:
a. Close fuel shut off valve on tank.
b. Disconnect fuel line.
c. Remove inspection plate over
clutch housing and follow directions in
Wisconsin Manual.
E. Belt Replacement
1. Remove belt guard (Fig. 2)
2. Loosen locking nut on adjusting
screw, (Fig. 2), and loosen adjusting screw.
3. Loosen three cap screws (Fig. 2) on
idler bracket and push idler bracket forward.
4. Remove worn belt. With new belt
positioned in their respective grooves on pinion
sheave, pull belt out to you and position in
respective grooves on idler bracket sheaves.
Pull up and align belt on engine drive sheave.
5. Tighten adjusting screw until required
belt tension in obtained. (Belt should compress
no more than 1/16” with full thumb pressure
midway between engine pulley and idler
pulley) Tighten lock nut and then securely
tighten three cap screws on idler pulley bracket.
6. Replace belt guard.
F. Timing of Stone Spiders
1. Whenever repairs are necessary in the
gear case, which requires removal of the engine
and pinion gear assembly, the following
procedure is to be followed. Where gear
replacement is necessary:
a. Remove belt guard, loosen idler
bracket, remove belt.
b. Unbolt engine from mounting
base.
c. Unbolt engine mounting base and
remove.
d. Loosen and remove top bearing
plates. Loosen and remove gear shaft lock nuts,
top and bottom.
e. Loosen and remove all nuts, gear
case cover and remove stone spider, morflex
coupling, and driving spider.
IMPORTANT: After removing drive spider, be
certain to remember or mark position of
keyway relative to fixed position on gear case.
f. With drive shaft out, you are in a
position to remove the damaged gear of shaft.
g. Position gear and shaft in case,
aligning keyway in position marked on
removal. Install lower bearing, grease seal,
key, drive spider, lock nut, morflex coupling,
and stone spider - in that order.
h. When you have installed the stone
spider, it should be perfectly timed. If they are
not, you are off on the alignment of the keyway
and will have to adjust.
i. Timing drive gears - See Fig. 3 and
follow instructions.
j. Install belt per instructions.
k. Install belt guards if furnished
with machine.

Ref. # Part # Description Qty Ref. # Part # Description Qty
1FE146 25 HP Motor (Electric) 149 2038 Capscrew 4
FE165 LP Motor 150 HB88A Caster Wheel 1
22142 Capscrew 451 1030 1/4" Lockwasher 15
32140 Lockwasher 852 2003 1/4" Nut 8
4X85 Cord Connector 253 FEN1B Handle Assembly 1
52111 Mounting Ring Bolts 454 LW76 Emergency Stop 1
6FE130HS Motor Mounting Plate 155 FE142-230 Starter 230 V 1
7FE5B Pinion 1FE142-460 Starter 460 V
8FE114 Motor Key 156 X84 Bracket 4
93011 Machine Screw 16 57 FE251 Rubber Mount 4
10 2118 Grease Fitting 458 FE32B Water Tank 1
11 FE27 Bearing Cap 459 DS5 Wheel Cap 2
12 2008 Lock Nut 12 60 DS7 Wheel Assembly 2
13 SM43 Bearing Cone 461 FE20B Wheel Shaft 2
14 SM37 Bearing Cup 862 FD90 Spring Washer 2
15 2139 Capscrew 463 FE32B Pivot Bolt 2
16 2140 Lockwasher 864 FE246 Pocket Weight - 42lb. 4
17 FE101 Capscrew 765 FE247R Lower Weight Basket 1
18 SM255 Lock Washer 12 FE247L Lower Weight Basket 1
19 2027 Washer 766 2018 Capscrew 3
20 1025 Capscrew 20 67 SM182 Spring 1
21 1022 Lockwasher 36 68 FD43 Guide Bracket 1
22 2099 Capscrew 16 69 SM186 Spacer 1
23 HB25 Washer 16 70 2082 Set Screw 1
24 FE125B Drive Gear (electric) 271 FE78 Water Tank Rod 1
FE6 Drive Gear (LP) 272 SM174 Water Valve 1
25 FE4B Driven Gear RH 273 FE189 Valve Stem 2
26 SM16 Gear Shaft 474 FS39 Water Hose
27 SM72 Gear Key 475 SM172 Hose Bracket Clamp 1
28 2012 Key 476 2082 Cotter Pin 1
29 FEN17 Grease Vent Assy 177 FE79 Water Valve Lever 1
30 SM15 Driven Gear LH 278 2101 Lock Nut 2
31 FE2F Gear Case Cover 179 FE248 Upper Weight Basket 2
32 FD40 Dowel Pin 680 FE29 Guard Straps
33 FE1C Gear Case 1 Parts Not Pictured
34 FE21 Stationary Guard 1SM448 Battery Box (LP only) 1
35 SM171 Capscrew 16 SM432 Battery (LP only) 1
36 2027 Lock Washer 16 FE207 Vacuum Hose 12'
37 SM36 Bearing Cone 4SM424 50 Amp Male Plug 1
38 SM169 Grease Seal 4SM 425 50 Amp Connector 1
39 SM500 Driving Spider 4FE262 Rubber Dust Seal 1
40 1007 Lockwasher 14 LW78 Brush Strip 2
41 1033 Capscrew 16 FE141 4-4 Cable, feet-230 V 100
42 FEN9 Splash Guard Lock Nut 2DS134 6-4 Cable, feet-460 V 100
43 FE153 Splash Guard Bolt 2FE266 Vacuum Pipes 2
44 SM88 Morflex Coupling 4SM489 60 Amp Plug 1
45 SM192B Stone Spider Plug 4SM490 60 Amp Plug 1
46 FR594 Plug Stone 12
47 FEN010 Movable Splash Guard Assy. 1
48 SM57 Handle Grips 2
Model 3100 Parts List

MODEL 3100 HANDLE BAR

ITEM NO. PART NUMBER DESCRIPTION QTY.
1 FEN 028 HANDLE BAR - 3100 1
2 FE 307 CONTROL ASSEMBLY 1
3 FE 251 VIBRATION MOUNT 4
4 FE 276 VARIABLE SPEED DRIVE - 25 HP - 460V 1
FE 279 VARIABLE SPEED DRIVE - 25 HP - 230V
5 LW 076 EMERGENCY STOP 1
6 SM 057 HANDLE GRIP 2
7 SM 457 Y-PIPE RH 1
8 SM 457LH Y-PIPE LH 1
9 HB 088B CASTER 1
10 FE 474 UPPER BELT GUARD 1
11 FE 475 LOWER BELT GUARD 1
12 FE 294 V-BELT 1
13 FE 293 PULLEY 1
14 X-81 STRAIGHT CORD CONNECTOR 3
15 FE 292 2 HP MOTOR 1
16 FE 291 PULL PIN 2
17 FE 285 KEYLESS LOCKING HUB 2
18 FE 280 AXLE DRIVE PLATE 2
19 FE 290 WHEEL BEARING 6
20 FE 267 SELP PROPELLED WHEEL 2
21 FE 287 PILLOW BLOCK 2
22 FE 284 TRANSAXLE 1
23 T3047 HOSE BARB 1
24 FE 289 EXPANSION TANK 1
25 SM 113-SMALL BOX ENCLOSURE 1
T6010 CONTACTOR 1
T6110 OVERLOAD 1
26 X-80 90 DEG CORD CONNECTOR 3
27 SM 091-BUTTON START/STOP BUTTON 1

MODEL 3100 LP ENGINE
Intermittent Output 38 HP @ 3600 RPM
Continuous Output 34 HP @ 3600 RPM
Peak Torque 55 ft-lbs @ 3600 RPM
Fuel Liquid Propane
Engine Configuration 4 Cylinder In-Line, SOHC
Block Material Cast Iron
Head Material Cast Aluminum
Bore x Stroke (in) 2-5/8 x 2-7/8
Total Piston Displacement 999 cc
Compression Ratio 9.7 : 1
Length x Width x Height (in) 19 x 20-1/2 x 26-1/2
Dry Weight 185 lbs.
Catalyst Remote Mounted
General Engine Specifications:

MODEL 3100 LP ENGINE
1ZENITH ENGINE
2OIL FILTER
3AIR FILTER
4OIL DRAIN HOSE
5MUFFLER
6LP GAS FILTER

REF # PART # DESCRIPTION QTY
1FE165B ZENITH 36 HP, LP ENGINE 1
2FE315 OIL FILTER 1
3AIR FILTER 1
4FE312 OIL DRAIN HOSE 1
5MUFFLER 1
6FE316 LP GAS FILTER 1
7FD132 BUSHING 1
8FE100 SET SCREW 8
9FEN14A LP TANK BRACKET & BASE ASSEMBLY 1
10 T2038 CAPSCREW 4
11 FE74 WATER TANK BRACE 1
12 T1030 1/4" LOCK WASHER 2
13 T2003 1/4" NUT 2
14 FE133A WATER TANK BRACKET 2
15 T1007 LOCK WASHER 2
16 T1006 CAPSCREW 2
17 FE154A CLUTCH ASSEMBLY 1
18 FD133 TAPER LOCK BUSHING 1
19 FE52 SHEAVE 1
20 FD77 PULLEY SPACER 1
21 FD115 BEARING 2
22 FD122 FELT WASHER 1
23 FD131 ENGINE SHEAVE 1
24 FD78 BEARING SPACER 1
25 FE66C PINION RH 1
26 T1008 KEY 1
27 T2111 MOUNTING RING BOLTS 4
28 FE303 PINION BASE 1
29 FE216 SNAP RING 2
30 FE101 CAPSCREW 3
31 SM255 LOCK WASHER 3
32 T2027 WASHER 3
33 T2081 CAPSCREW 3
34 FD100 KEY BRACKET 1
35 FE302 BELT 1
36 FE88 IDLER ADJUSTING SCREW 1
37 T2101 LOCKING NUT 1
38 RT17 SPACER 1
39 T2008 LOCK NUT 2
40 FE211 IDLER BRACKET 1
41 FE215 BEARING 2
42 FE213 IDLER SHAFT 2
43 T3021 SET SCREW 2
44 FE296 MOTOR MOUNT 1
45 BELT GUARD LH 1
46 BELT GUARD RH 1
47 FD129A SHEAVE 2
48 FE300 WATER TANK 1
MODEL 3100 LP PARTS LIST

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
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 LIM-
ITAIONS MAY NOT APPLY TO YOU. THIS WARRANTY SHALL NOT AP-
PLY TO ANY EQUIPMENT OR PART THEREOF WHICH HAS BEEN SUB-
JECT TO ACCIDENT, NEGLIGENCE, ALTERATIONS, ABUSE, MIS-
USE, OR IMPROPER MAINTENANCE. TERRCO®, INC. MAKES NO WAR-
RANTIES WHATSOEVER IN RESPECT TO ACCESSORIES OR PARTS NOT
MANUFACTURED OR SUPPLIED BY US.