INSTRUCTION BULLETIN

No. 340741

Machine: 800/810LP

Published: 06--2004

Rev. 00

NOTE: DO NOT DISCARD the Parts List from the Instruction Bulletin. Place the

Parts List in the appropriate place in the machine manual for future reference. Retaining the Parts List will make it easier to reorder individual parts and will save the cost of ordering an entire kit.

NOTE:Numbers in parenthesis ( ) are reference numbers for parts listed in Bill of Materials.

Installation instructions for kit number 9000889

SYNOPSIS / PROBLEM:

This kit contains parts needed to install/replace the LPG injector, ECU controller, coolant orifice, and filter on

800/810 LPG model sweepers with serial numbers between 004937 and 005999 (with Zeems fuel systems).

Please follow step-by-step instructions.

SPECIAL TOOLS / CONSIDERATIONS: NONE

(Estimated time to complete: 2 hours)

PREPARATION:

1. Park the machine on a clean level surface.

FOR SAFETY: Before leaving or servicing machine, stop on level surface, turn off machine, and remove key.

2. Open and lock engine compartment doors.

3. Close the fuel tank service valve.

4. Run the engine until it stops from lack of fuel.

FOR SAFETY: When servicing machine, allow engine to cool. Keep flames and sparks away from fuel system service area. Keep area well ventilated.

5. Disconnect the battery cables from the machine.

WARNING: Always disconnect the battery cables from the machine before working on electrical components.

IB 340741 (06-2004) 1

Electronic Fuel Ignition and Vaporizer Group, LPG (004937--005999)--FOR REFERENCE ONLY

1. Remove the indicated parts from the engine. Refer to the diagram below for parts to be removed.

20

Remove

Remove

2

FOR REFERENCE ONLY

IB 340741 (06-2004)

Electronic Fuel Ignition and Vaporizer Group, LPG (004937--005999)--FOR REFERENCE ONLY

Ref.

Tennant

Part No.

1 371894

1 371895

2 371538

3 769808

4 392570

5 371749

6 371754

7 371755

8 371750

9 371758

10 371768

11 371757

12 393972

13 11399

14 371759

15 393991

16 36165

17 47167

18 371767

19 371766

20 07597

21 769806

Machine

Serial Number Description

(004937--005999 ) Housing Assy, Throttle, Lpg, [With Ecu]

(004937--005999 ) Housing Assy, Throttle, Lpg, [Without Ecu]

(004937--005999 ) Clamp

(004937--005999 ) Hose, Heater, 0.38id x 18.0 L

(004937--005999 ) Plate

(004937--005999 ) Vaporizer

(004937--005999 ) Fitting

(004937--005999 ) Pipe

(004937--005999 ) Regulator

(004937--005999 ) Fitting

(004937--005999 ) Fitting

(004937--005999 ) Fitting

(004937--005999 ) Hose, Conv

(004937--005999 ) Clamp, Hose, Wormdrive, 0.81--1.50d

(004937--005999 ) Screw

(004937--005999 ) Sensor, Water Temp

(004937--005999 ) Send--unit, Water, Temperature, .38npt

(004937--005999 ) Fitting, Brs, Str, Pm08/Pf06

(004937--005999 ) Spacer

(004937--005999 ) Fitting, Elbow

(004937--005999 ) Hose, Hi Press, Lp

(004937--005999 ) Hose, Heater, 0.38id x 21.0 L

FOR REFERENCE ONLY

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IB 340741 (06-2004) 3

NOTE: Refer to ECU Wiring Procedure for steps required to rewire the modified controller (ECU). Rewiring must be completed according to the

ECU Wiring instructions. The redesigned injector will not function if rewiring is not completed according to the provided instructions. Remove the old parts and install the new (11) and (12) as shown in the diagram below.

11

12

4 IB 340741 (06-2004)

heat shrink

FIG. 1

FIG. 2

FIG. 3

Brown wire from pin #3

Brown wire from pin #2 solder joint

FIG. 4

NOTE: The ECU reprograms itself when the engine is first started after rewiring. Allow approximately

1--2 minutes for the engine to settle down. The machine is then ready for use.

IB 340741 (06-2004)

ECU Wiring Procedure:

NOTE: Refer to schematic on the following page for additional wiring information.

1. Disconnect the white connector from the ECU.

Refer to Fig. 1.

2. Release, but do not remove, the red locking cover from the white connector to dislodge the connection. Refer to Fig. 2.

3. Cut the brown wire in pin #3 approximately 2” above the connector.

4. Strip a small portion of insulation from the loose end of the brown wire still in pin #3 .

5. Measure and mark a point 1 1/2” from the connector end of the brown wire in pin #2 .

Refer to Fig. 3.

6. Strip 3/4” of insulation from the marked area of the brown wire in pin #2 .

7. Pull and twist the brown wire in pin #2 from the connector.

8. Slide heat shrink onto the brown wire from pin #2 .

9. Solder the loose end of the brown wire in pin #3 to the brown wire in pin #2 . Solder wires as shown in Fig. 4 so heat shrink can be positioned over the solder joint for the best possible seal.

10. Heat shrink the heat shrink over the solder joint and the exposed portions of both brown wires.

Refer to Fig. 4.

11. Push the brown wire removed from the connector back into pin #2 . Ensure brown wire is locked into place .

12. Ensure other wires are secure in the connector.

13. Lock the red locking cover back into place.

14. Reinstall (snap back) red cover back into place.

15. Ensure the red seal is properly positioned inside the white connector.

16. Tape the unused brown wire from the harness against the harness. This wire is not used.

17. Plug the white connector into the ECU. The coonector should easily plug into the ECU. Do not force the connector into the ECU. Refer to Fig. 1.

5

NOTE: Refer to the ECU Wiring Procedure for steps required to rewire the modified controller (ECU). Rewiring must be completed according to these instructions. The redesigned injector will not function if rewiring is not completed according to the provided instructions.

6

C

D

E

A

B

C

D

E

A

B

INJ

J1--13

COIL

J2--10

02--B

J1--22

J1--2

KEY1

LP

OA2

J2--12

J1--23

J1--16

KEY2

RST

GD1

J1--20

J1--21

GD2

GND

J2--11

MAG1

J2--21

MAG2 J2--19

J1--15

MG--3 J2--20

J1--3

GAS MP--C J2--4

MAP--B J2--17

DIST

J1--11

COIL--B J1--18

J1--7

TEMP2

J1--12

ENG

COIL--A J1--10

OXY

J2--9

J2--3

+5V TEMP J2--1

J2--6

EX

J2--16

SP2

J2--2

SPD1

GOV J1--5

FUEL

J1--4

OIL

J2--8

D

B

A

C

A

A

C

B

C

B

D

A

A

A

C

A

A

B

B

B

B

B

IB 340741 (06-2004)

IB 340741 (06-2004)

FIG. 5

7

Assembly Instructions

NOTE: Assemble all parts as shown in Fig. 6 through Fig. 9. Refer to the parts list on the last page for descriptions of numbered parts.

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4

3

Existing Fittings p/n 1017272

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1

8

17

FIG. 6

Must be rewired as instructed in the ECU Wiring Procedure.

11 12

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Qty 2

19 Qty 2

8

FIG. 7

IB 340741 (06-2004)

2

Bracket should have holes.

Refer to Fig. 5 if holes must be drilled.

6

18

10

Drain oil every week.

Engine must be OFF.

FIG. 8

After kit is installed, open the drain cock, start the engine, bleed the air through the coolant line, and shut off the engine.

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14

15

Route behind hydraulic hoses.

Coolant hose p/n 393972

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16

19 Qty 2

21

20

Qty 2

Qty 2

FIG. 9

IB 340741 (06-2004) 9

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Parts List--(9000889)--Refer to Fig. 6 through Fig. 9 to identify parts

Ref.

Tennant

Part No.

1 1017477

2 1017272

3 150516

4 1017239

5 1017598

6 1017080

7 02247

8 1017476

9 311828

10 1017500

11 9000823

12 1017270

13 51305

14 64740

15 392258

16 11399

17 130041

18 1017662

19 19317

20 29570

21 19312

22 41755

)

)

Description

) Hose, Lpg, MED08, JF08STR/JF08STR, 37.5”

Fitting, Hyd, E90, JM08/PM04

Fitting, Brs, Str, PM04/BM06

Fitting, Brs, Str, PM04/PF04 Reducer

Fitting, Plstc, Str, BM06/M.69--16

) Bracket, Filter, Lpg [6600]

Fitting, Pipe, Plug, PM04 Hex Soc

Hose, Lpg, ME08, JF08STR/JF08STR, 35.0”

Fitting, Brs, Str, PM08/PF04

Filter, Fuel, Lpg Coalescent

) Kit, Replmt, Controller F/371892

Injector, Fuel, Lpg [3.0L GM] 8410/800

Fitting, Draincock, .25NPT 90

Fitting, Plstc, Tee, BM12/PF08/BM12

Hose, PVC, Clr, 0.38ID 0.56OD 13.00L

Clamp, Hose, Wormdrive, 0.81--1.50D

Tie, Cable, Nyl, 11.5L .19W

Label, Instr, Filter Drain

Screw, Hex, .25--20 X 0.75, 5

Washer, Flat, 0.28B 1.00D .06, Stl

Nut, Hex, Std, .25--20

Tube, Heatshrink, .25ID 01.5L (Not Shown)

TENNANT COMPANY

P. O. Box 1452

Minneapolis, MN 55440-1452

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IB 340741 (06-2004)