Tsurumi Pump EPT3 Series Operating instructions

OPERATION, SERVICE, AND
REPAIR MANUAL
FOR TSURUMI EPT3-SERIES
TRASH PUMPS
MODELS
EPT3-50HA
EPT3-80HA
EPT3-100HA

LIMITED WARRANTY
TSURUMI MANUFACTURING CO., LTD. (“TSURUMI”) warrants to the original end purchaser during
the warranty period, every new TSURUMI pump or product to be free from defects in material and
workmanship under normal use and service, when properly installed, used, and maintained (in accor-
dance with Tsurumi’s Operation, Service, and Repair Manual) for a period of two years from the date
the unit was first installed or twenty six months from the date of shipment by TSURUMI to wholesaler,
whichever comes first.
TSURUMI’S sole obligation under this warranty is to repair or replace at TSURUMI’S option, with new
or remanufactured parts, any part(s) that fail or that are found to be defective during the warranty peri-
od. No allowance will be made for shipping charges, damages, labor, or other charges due to failure,
repair or replacement.
This warranty does not apply to any TSURUMI product that has been disassembled without prior
approval of TSURUMI nor does it apply to any product that has been subjected to misuse, neglect,
alteration, misapplication, accident or act of God.
TSURUMI assumes no responsibility for compliance with any regulations, codes, standards, or ordi-
nances applicable to the installation, location, operation or maintenance of its products.
No other warranty, expressed or implied, is authorized by, or applicable to, the seller. No person,
agent or dealer is authorized to enlarge upon this warranty.
TSURUMI expressly disclaims liability for consequential or incidental damages or breach of expressed
or implied warranty; and any implied warrant of fitness for a particular purpose and merchantability
shall be limited to the duration of the expressed warranty.
Some states do not allow limitations on the duration of an implied warranty, so the above limitation or
exclusion may not apply to you. Some states do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation of exclusion may not apply to you.
This warranty gives you specific legal rights and you may also have other rights, which vary from state
to state.
Tsurum Manufactur ng Co., Ltd.

TABLE OF CONTENTS
Section/Title Page
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1. Using Your Tsurumi Operation, Repair and Service Manual . . . . . . . . . . . . . . . . . . . 1
1-2. Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-3. Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-4. Specifications / Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-5. Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-1. Operating Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-2. Check the Engine Oil Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-3. Check Engine Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2-4. Check Fuel Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2-5. Pre-Start Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2-6. Starting and Operating the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2-7. Using the Trash Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2-8. Stopping the Trash Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2-9. Oil Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3-1. Troubleshooting Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4-1. Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4-2. Changing Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4-3. Air Cleaner Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4-4. Sediment Cup Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4-5. Cleaning and Adjusting Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4-6. Trash Pump Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4-7. Description of Mechanical Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4-8. Replacement of Mechanical Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4-9. Replacing of Check Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5. Storage Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5-1. Procedures for Storing Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6. Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6-1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6-2. Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Appendix A - Wheel Kit Model PGWK-200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

INTRODUCTION
1-1 Us ng Your Tsurum Operat on, Repa r and Serv ce Manual
We thank you for purchasing a Tsurumi trash pump. We are sure that the trash pump you have select-
ed will meet your portable pumping needs.
This manual applies to the Tsurumi trash pumps listed below. Specifications for the trash pumps are
provided in the SPECIFICATIONS section. Key features of the trash pump are shown in the
DESCRIPTION section.
EPT3-50HA
EPT3-80HA
EPT3-100HA
This manual provides instructions for operation, service, and repair of your trash pump. We strongly
recommend that those who operate the trash pump become familiar with the trash pump’s features
and controls, and read the operating instructions before using the trash pump.
The Operation, Repair, and Service Manual also provides instructions to service, checkout, and repair
the trash pump. This manual also provides replacement parts information.
Repair and service information for the Honda engine is provided in the Owner’s Manual for Models
GX160, GX240, and GX340. A copy of the Owner’s Manual has been provided in the trash pump’s lit-
erature package. Parts information for the Honda Engine is available in Honda’s Parts Catalogs.
When there are differences between trash pump models, separate instructions are provided. The sepa-
rate instructions are provided to make sure the correct procedures are used on the affected trash pumps.
All information in the Tsurumi manuals is based upon the latest production configuration of the trash
pump at the time of approval for printing.
If you have a problem with your trash pump that cannot be resolved using the Operation, Repair, and
Service Manual, or if you have questions about the operation, service, repair, or maintenance of your
trash pump, contact your local Tsurumi trash pump dealer.
1-2 Precaut ons
Pay special attention to precautionary notes preceded by the words WARNING, CAUTION, and
NOTE.
WARNINGS indicate that there is a strong possibility of personal injury or loss of life if the procedure
is not followed, or if cleaning, lubricating, adhesives, and other materials are not used properly.
CAUTIONS indicate that there is a possibility of equipment damage if instructions are not followed.
NOTES are used in procedures to provide additional or supplemental information to make the proce-
dure easier or more efficient.
WARNING:
• The trash pump s des gned to g ve safe and dependable serv ce when operated accord ng
to the nstruct ons n the techn cal manual prov ded w th the trash pump.
• Do not operate the trash pump before you have read and understand the nstruct ons and
the eng ne manufacturer’s manual. Fa lure to do so could result n personal njury or equ p-
ment damage.
Introduction Page 1
Tsurumi’s Operation, Service, and Repair Manual

1-3 Safety Precaut ons
WARNING:
•IN ORDER TO ASSURE SAFE AND EFFICIENT OPERATION OF THE TRASH PUMP, OPERA-
TOR’S SHOULD READ AND COMPLY WITH THE FOLLOWING SAFETY PRECAUTIONS.
•Do not operate the trash pump near gasol ne or gaseous fuels because of the potent al dan-
ger from explos on or f re.
•Do not f ll the fuel tank w th fuel wh le the eng ne s runn ng. Be careful not to spill fuel during
refueling. If fuel is spilled, wipe it off and let it dry before starting the engine.
•Do not smoke or use open flame near the fuel tank.
•Do not place flammable mater als near the trash pump. Be careful not to place fuel, matches,
gunpowder, oily cloths, straw, trash, or any other combustibles near the trash pump.
•Do not operate the trash pump ns de a room, cave, tunnel, or other nsuff c ently vent lated
area. Always operate the trash pump in a well-ventilated area. The engine may become overheat-
ed, and the poisonous carbon monoxide gas contained in the exhaust gases will endanger human
lives.
•Keep the trash pump at least 1 meter (3 feet) away from any structure or bu ld ng dur ng use.
When a trash pump is located close to a building or nearby equipment, heat and exhaust from the
engine will cause the surrounding temperature to rise. This will degrade the engines cooling effi-
ciency, causing overheating.
•Do not enclose the trash pump nor cover t w th a box. The trash pump has a built-in, forced-
air cooling system, and may become overheated if it is enclosed.
•Operate the trash pump on a level surface. It is not necessary to prepare a special foundation
for the trash pump. However, the trash pump will vibrate on an irregular surface. Therefore, choose
a level place without surface irregularities.
•Shutoff the trash pump when mov ng the trash pump to another work s te. It the trash pump
is tilted or moved during operation, fuel may spill and/or the trash pump may tip over, causing a haz-
ardous situation. Proper lubrication cannot be expected if the trash pump is operated on a steep
incline or slope. In such a case, the piston may seize; it may seize even if the oil is above the upper
level.
Page 2 Introduction
Tsurumi’s Operation, Service, and Repair Manual

1-4 Specifications / Key Features
• Heavy-duty Honda Engine— proven reliability—quiet operation—efficient fuel consumption
•Oil Level Sensor—prevents engine operation when oil level is low
•New Design Clean Out Cover— cover removes quickly for clean-out without the need to remove
the suction hose
•New Design—larger pump casing for increased durability
•Mechanical Seal—silicon carbide seal element for long life
•Rubber Vibration Isolation Mounts—isolates pump/engine vibration from the frame for maximum
protection and noise reduction.
•Durable Rolled Steel Frame—for strength and durability
•High Chrome Impeller—increase ability to withstand the impact of debris passing through the pump
•Cast Iron Volute Casing/Stainless Steel Wear Plate/Galvanized Steel Hose Couplings.
1-5 Performance Curves
Refer to the performance curves for the pumping capacity of NPT3 series trash pumps.
Introduction Page 3
Tsurumi’s Operation, Service, and Repair Manual
AH001-3TPEAH08-3TPEAH05-3TPESLEDOM
Pump Output Gal./Min-to-Total Head See Performance Curve See Performance Curve See Performance Curve
elaMTPN4elaMTPN3elaMTPN2sehcnIeziSnoitcuS
PUMP
432sehcnIeziSegrahcsiD
Engine Models (Honda) - - - - GX160UT2WKT2 GX240UT2WKT2 GX340UT2WKT2
)mpr0063(0.11)mpr0063(0.8)mpr0063(5.5mpr/ph)mpr(PH.xaM
nI(CCtnemecalpsiD 3) 163 (10) 242 (15) 337 (21)
7.16.159.0.slaGyticapaCknaTleuF
Noise Level (Rated Load) dB 64 dB 68 dB 72 dB
ENGINE
lioceRlioceRlioceR---metsySgnitratS
Dimensions (L x W x H) Inches 23 x 18 x 17 27 x 20 _ x 25 30 _ x 20 x 26
SET
06163128.sbLthgieWgnippihS
EPT3-100HA
EPT3-80HA
0
20
40
60
80
100
0 100 200300 400 500 600
QUANTITY(g.p.m.)
TOTAL HEAD(ft.)
EPT3-50HA
GROUP
PERFORMANCE
MODELS
EPT3-50HA
EPT3-80HA
EPT3-100HA

Page 4 Introduction
Tsurumi’s Operation, Service, and Repair Manual
0
20
40
60
80
100
0 100 200 300 400 500 600
QUANTITY(g.p.m.)
TOTAL HEAD(ft.)
MODEL EPT3-50HA
0
20
40
60
80
100
0 100 200 300 400 500 600
QUANTITY(g.p.m.)
TOTAL HEAD(ft.)
MODEL EPT3-80HA
0
20
40
60
80
100
0 100 200 300 400 500 600
QUANTITY(g.p.m.)
TOTAL HEAD(ft.)
MODEL EPT3-100HA
INDIVIDUAL
PERFORMANCE
MODEL
EPT3-50HA
INDIVIDUAL
PERFORMANCE
MODEL
EPT3-80HA
INDIVIDUAL
PERFORMANCE
MODEL
EPT3-100HA

Introduction Page 5
Tsurumi’s Operation, Service, and Repair Manual
Suction
Fitting
Discharge
Fitting
Priming
Plug
Engine Air
Filter
Vibration
Isolation Mounts
Clamping
Knobs
Casing
Cover
Recoil
Starter
Tubular
Frame
Engine
Controls
Fuel Tank
Honda
Engine
ENGINE END
Engine
Muffler
PUMP END
F gure 1: Key Features of the Trash Pump

OPERATING INSTRUCTIONS
2-1 Operat ng Controls
A. The trash pump operating controls are located on the engine.
B. The controls consist of a throttle lever (for speed control), choke lever (for cold weather
starting), fuel shutoff lever (to prevent fuel spills), and a recoil starter (to turnover engine by
hand). (Refer to Figure 2-1.)
2-2 Check the Eng ne O l Level
CAUTION:
• ENGINE OIL IS A MAJOR FACTOR AFFECTING PERFORMANCE AND SERVICE LIFE.
NON-DETERGENT OILS AND 2-STROKE OILS ARE NOT RECOMMENDED BECAUSE
THEY HAVE INADEQUATE LUBRICATING CHARACTERISTICS
• CHECK THE OIL LEVEL WITH THE ENGINE ON A LEVEL SURFACE AND THE ENGINE
STOPPED.
A. The trash pump is controlled by the engine operating controls.
B. Use Honda 4-stroke oil, or use an equivalent high detergent, premium quality motor oil cer-
tified to meet or exceed U.S. automobile manufacturer’s requirements for Service
Classification SG, SF. Motor oils classified SG, SF will show this designation on the con-
tainer. SAE 10W/30 is recommended for general, all-temperature use.
C. Other viscosity grades shown in Figure 2-2 may be used when the average temperature in
your area is within the indicated range.
Page 6 Operating Instructions
Tsurumi’s Operation, Service, and Repair Manual
Throttle
Lever
Choke
Lever
Recoil
Starter
Hand Grip
ON/OFF Sw tch
(Located on Reco l
Starter Shroud)
F gure 2-1: Operat ng Controls
Fuel Shutoff
Valve
OFF
ON

D. When checking oil, observe the following (refer to Figure 2-3): (Make sure the engine is in a level
position.)
(1) Remove the oil filler cap/dipstick and wipe it clean.
(2) Insert the filler cap/dipstick into the oil filler neck, but do not screw it in.
(3) Remove the filler cap/dipstick and check the oil level.
(4) If the level is low, fill to the top of the oil filler neck with the recommended oil.
(5) Reinstall the oil filler cap/dipstick.
Operating Instructions Page 7
Tsurumi’s Operation, Service, and Repair Manual
F gure 2-2: O l V scos ty Grade-to-Temperature Recommendat ons

2-3 Check Eng ne Fuel
WARNING
•MAKE SURE YOU REVIEW EACH WARNING IN ORDER TO PREVENT FIRE HAZARD.
• DO NOT REFILL TANK WHILE ENGINE IS RUNNING OR HOT.
• CLOSE FUEL SHUT OFF VALVE BEFORE REFUELING WITH FUEL.
• BE CAREFUL NOT TO GET DUST, DIRT, WATER OR OTHER FOREIGN OBJECTS
INTO FUEL.
• WIPE OFF SPILLED FUEL THOROUGHLY BEFORE STARTING ENGINE.
• KEEP AWAY FROM OPEN FLAMES.
• DO NOT USE SMOKING MATERIALS WHEN FILLING THE FUEL TANK.
• DO NOT REFUEL WHILE SMOKING OR NEAR OPEN FLAME OR OTHER SUCH POTENTIAL
FIRE HAZARDS. OTHERWISE FIRE ACCIDENT MAY OCCUR.
• AVOID REPEATED OR PROLONGED CONTACT WITH SKIN OR BREATHING OF VAPOR.
• KEEP OUT OF REACH OF CHILDREN.
2-4 Check Fuel Level
A. If fuel level is low, refill with unleaded automotive gasoline.
B. Fuel tank capacities are provided below:
EPT3-50HA . . . . . . . . . . . . . . . .0.95 gal.
EPT3-80HA . . . . . . . . . . . . . . . .1.60 gal.
EPT3-100HA . . . . . . . . . . . . . . .1.70 gal.
Page 8 Operating Instructions
Tsurumi’s Operation, Service, and Repair Manual

2-5 Pre-Start Checks
WARNING:
• MAKE SURE YOU REVIEW EACH WARNING IN ORDER TO PREVENT FIRE HAZARD.
• KEEP AREA CLEAR OF FLAMMABLES OR OTHER HAZARDOUS MATERIALS.
A. Check the following items before starting the engine.
(1) Fuel leakage from (fuel hose, sediment cup, etc.).
(2) Bolts and nuts for looseness.
(3) Components for damage or breakage.
(4) Check trash pump surroundings.
(a) Keep trash pump at least three (3) feet (one [1] meter) away from buildings or
other structures.
(b) Only operate trash pump in a dry, well-ventilated area.
(c) Keep exhaust pipe clear of foreign objects.
(d) Keep trash pump away from open flame.
(e) Keep trash pump on a stable and level surface.
(f) Do not block trash pump air vents with paper or other material.
2-6 Start ng and Operat ng the Eng ne
A. Refer to the Honda engine owner’s manual.
B. Put the fuel valve in the ON position.
C. Move the choke lever to the closed position.
Operating Instructions Page 9
Tsurumi’s Operation, Service, and Repair Manual

Page 10 Operating Instructions
Tsurumi’s Operation, Service, and Repair Manual
NOTE:
•The choke may not be needed if the engine is warm or the air temperature is high.
D. Set the ON/OFF switch to ON (the ON/OFF switch is mounted on the recoil shroud).
E. Move the throttle lever slightly to the left.
F. Pull the starter grip lightly until resistance is felt, then pull briskly.
NOTE:
•Do not allow the starter grip to snap back against the engine. Return it gently to prevent damage
to the starter.
G. As the engine warms up, gradually move the choke lever to the OPEN position.
2-7 Us ng The Trash Pump
A. Connect suction and discharge hoses. Make sure suction hose is fitted with a strainer.
B. Remove priming plug from top of pump and fill chamber with water.
C. Operate the engine at idle speed for 3 to 5 minutes.
D. After engine warm up, move the throttle lever to the operating speed.
2-8 Stopp ng The Trash Pump
A. Move the throttle lever fully to the right.
B. Set the ON/OFF switch to OFF.
C. Turn the fuel valve to the OFF position.
2-9 O l Alert
A. The oil alert sensor detects the lowering of the oil level in the crankcase and automatical-
ly stops the engine when the oil level falls below the predetermined level.
(1) When the engine stops automatically, check the oil level. Refill engine oil to the upper
level and restart the engine.
(2) If the engine does not start by usual starting procedures, check the oil level.

Troubleshooting Page 11
Tsurumi’s Operation, Service, and Repair Manual
TROUBLESHOOTING
The troubleshooting tables below can be used as a guide to isolate trash pump faults. Refer to these
tables when the engine fails to start after several attempts. If, after following these procedures, the pump
fails to start, contact the nearest Tsurumi generator dealer.
Table 3-1: Troubleshoot ng Table
Fault Probable Cause Remedy
Pump does not pump. Insufficient priming water. Add more water through priming plug.
Mechanical seal chipped or broken. Replace mechanical seal.
Check valve damaged. Replace check valve.
Suction hose damaged or strainer
clogged.
Replace hose. Clean strainer.
Air leaks caused by O-ring
damage.
Replace O-rings.
Discharge flow or pump
pressure too low.
Air leaks caused by O-ring
damage.
Replace O-rings.
Suction hose or strainer clogged. Replace hose.
Clean strainer.
Excessive impeller clearance. Disassemble to obtain casing cover and
impeller. Determine clearance and re-
shim as required (refer to Replacement
of Mechanical Seal).
Engine rpm too low. Check rpm and reset throttle as
required.
Lift head too high. Lower lift head.
Pump primes too
slowly.
Insufficient priming water. Add more water through priming plug.
Mechanical seal chipped or broken. Replace mechanical seal.
Check valve damaged. Replace check valve.
Suction hose damaged or strainer
clogged.
Replace hose.
Clean strainer.
Air leaks caused by O-ring
damage.
Replace O-rings.
Engine rpm too low. Check rpm and reset throttle as
required.
Lift head too high. Lower lift head.
Noise or vibration. Faulty mounting. Pump/engine attaching parts loose.
Tighten as required.
Damaged vibration isolation mounts.
Replace mounts.

Page 12 Maintenance
Tsurumi’s Operation, Service, and Repair Manual
MAINTENANCE
4-1 Maintenance Schedule
To maintain the trash pump in peak operating condition, observe and implement the maintenance and
adjustment schedule in Table 4-1. Inspect and/or service the trash pump at the intervals shown in
Table 4-1.
WARNING:
• SHUT OFF THE ENGINE BEFORE PERFORMING ANY MAINTENANCE. IF OPERATION OF
THE ENGINE IS REQUIRED, MAKE SURE THE AREA IS WELL VENTILATED; THE ENGINE
EXHAUST CONTAINS POISONOUS CARBON MONOXIDE GAS.
CAUTION:
• REFER TO THE HONDA ENGINE OWNER’S MANUAL FOR OTHER MAINTENANCE
REQUIREMENTS.
Table 4-1: Maintenance Schedule
noitcAecnanetniaMycneuqerF
Daily Check oil level.
Check all components according to the PRE-OPERATIONAL
CHECKS section.
50 Hours Wash cleaner element.
Check spark plug and clean if necessary.
100 Hours Change engine oil.
200 Hours Adjust spark plug gap.
Clean fuel strainer.
500 Hours (12 Months) Replace spark plug and cleaner element.
Clean and adjust carburetor, valve clearance, and valve seat
along with cylinder head.
1,000 Hours (24 Months) Recommend the replacement of the mechanical seal to overhaul
Replace engine isolation mounts.
Overhaul engine.
Change fuel lines.

Maintenance Page 13
Tsurumi’s Operation, Service, and Repair Manual
4-2 Chang ng Eng ne O l
A. An initial oil change should be performed after the first twenty- (20) hours of use.
Thereafter, change oil every 100 hours.
B. Before changing the oil, check for a suitable way to dispose of the used oil. Do not pour it
down sewer drains, onto garden soil or into open streams. Refer to your local zoning and
environmental regulations for disposal and handling requirements.
C. Drain the oil while the engine is still warm to assure rapid and complete draining.
D. Remove the oil filler dipstick/cap and drain plug. Allow oil to drain from the engine (refer to
Figure 4-1).
E. Install the drain plug, and tighten it securely.
F. Refill with the recommended oil (refer to Figure 2-2).
G. After filling with oil, check the oil level.
H. When oil reaches the upper limit, install the oil filler dipstick/cap (Figure 4-2).
NOTE:
•Engine oil capacity: 1.1 liters (1.16 U.S. Quart)
F gure 4-1: Dra n ng Eng ne O l
F gure 4-2: Check ng O l Level

Page 14 Maintenance
Tsurumi’s Operation, Service, and Repair Manual
4-3 A r Cleaner Serv ce
WARNING
• Never use gasol ne or low flash po nt solvents for clean ng the a r cleaner element. A f re
or explos on could result.
A dirty air cleaner will restrict airflow to the carburetor. To prevent degraded engine operation, service
the air cleaner regularly. Service more frequently when operating the engine in extremely dusty areas.
NOTE:
•Never run the engine without the air cleaner. Rapid engine wear will result from contaminants,
such as dust and dirt, being drawn through the carburetor and into the engine.
4-4 Sed ment Cup Clean ng
WARNING:
• Gasol ne s extremely flammable and s explos ve under certa n cond t ons. Do not smoke
or allow open flames or sparks n the area.
A. Turn the fuel valve to OFF (refer to Figure 2-1).
B. Remove the sediment cup and O-ring. Wash both parts in nonflammable or high flash point
solvent.
C. Wipe the sediment cup and O-ring dry, then reinstall.
WARNING:
• After nstall ng the sed ment cup, check for leaks, and make sure the area s free of res d-
ual fuel sp lls or seepage before start ng the eng ne.
D. Set the fuel shutoff valve (Figure 2-1) to ON. Check for leaks.
4-5 Clean ng and Adjust ng Spark Plug
Recommended spark plugs: BPR6ES (NGK)
W20EPR-U (NIPPONDENSO)
A. To ensure proper engine operation, the spark plug must be properly gapped and free of
deposits.
B. Remove the spark plug cap.
C. Clean any dirt from around the spark plug base.
D. Use the proper size spark plug wrench to remove the spark plug.
WARNING
•THE MUFFLER BECOMES VERY HOT DURING OPERATION AND REMAINS HOT FOR A
WHILE AFTER STOPPING THE ENGINE. BE CAREFUL NOT TO TOUCH THE MUFFLER
WHILE IT IS HOT.
E. Visually inspect the spark plug. Discard it if the insulator is cracked or chipped. Clean the
spark plug with a wire brush if it is to be reused.

Maintenance Page 15
Tsurumi’s Operation, Service, and Repair Manual
F. Measure the plug gap with a feeler gauge. Adjust the gap as necessary by bending the side
electrode (refer to Figure 4-3).
G. The gap should be 0.7 - 0.8 mm (0.028 - 0.031 inch) as shown.
4-6 Trash Pump Exploded Views
A. Exploded views of the trash pump components are provided in the MAINTENANCE sec-
tion for parts identification purposes.
B. The item numbers (numbers in parentheses) correspond with the item numbers in the parts
list illustrations located in the REPLACEMENT PARTS section.
4-7 Description of the Mechanical Seal
A. The mechanical seal (6) is a two part seal. The seal consists of a fixed element and a rotat-
ing element.
B. The fixed element is installed in the center bore of the pump casing. The fixed element is
sealed between the seal and the center bore that is provided by a strip of sealant on the
outside diameter of the seal.
C. The rotating element is installed in the center bore of the impeller. The rotating element
consists of a silicone-carbide mating ring and a close-fitting rubber cushion. Water is used
as an assembly aid when installing the cushion and mating ring.
4-8 Replacement of Mechanical Seal
WARNING:
• THE SHIPPING WEGHT OF THE MODEL EPT3-SERIES PUMPS RANGES FROM 80 TO 160
POUNDS. TO AVOID PERSONAL INJURY, USE AN OVERHEAD LIFTING DEVICE OR GAIN
THE ASSISTANCE OF ANOTHER PERSON TO LIFT THE PUMP ON AND OFF THE BENCH.
• IT IS RECOMMENDED THAT THE PUMP BE ASSEMBLED AND DISASSEMBLED ON A
BENCH OR SIMILAR STRUCTURE WITH THE ENGINE SHROUD FACING DOWN. IN ADDI-
TION, WOODEN BLOCKS IN A VARIETY OF LENGTHS AND THICKNESS SHOULD BE
AVAILABLE FOR SUPPORT OF THE ENGINE AFTER PUMP REMOVAL.
NOTE:
• The item numbers in the procedures that follow correspond with the item numbers listed in the
REPLACEMENT PARTS section of the manual.
A. Refer to exploded views Figures 4-4 and Views A, B, and C.
D. It is recommended to replace the mechanical seal at the time of overhaul.

Page 16 Maintenance
Tsurumi’s Operation, Service, and Repair Manual
(10/11) Plug
and O-Ring
(16) O-Ring
F gure 4-4: Exploded V ew of Internal Components
(5) Liner
(4) Inner
Casing
(3) Impeller
(2) Casing
Cover
(1) Casing
(23) Holder
(24) Knob
(15) O-Ring
V
ew A: Remove casing cover
to gain access to impeller —the
rotating member of the
mechanical seal is in the
im
p
eller.
V
ew C: Remove 3 screws
to remove liner. Discard
old liner.
V
ew B: If liner is damaged,
remove 2 screws and
separate inner casing from
casing cover. Replace liner
durin
g
re-assembl
y
.