Koshin KTH-S Series User Manual

Operating Instructions & Parts Manual
KTH-S SERIES
TRASH PUMP
1
Please read and save these instructions and Engine owner`s manual. Read carefully before attempting to assemble, install,
operate or maintain the product described.
Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury
and or property damage! Retain instructions for future reference.
Heavy Duty
Connection Dia
Connection Thread
Total Head
Discharge Volume
Max. Suction Lift
Type
Model
Displacement
Fuel
Engine Oil
Fuel Tank Capacity
Starting System
Standard Accessory
Net Weight
Guaranteed Sound Power
PUMPENGINE
SPECIFICATIONS
Model KTH-80S KTH-100S
3” (80 mm)
27 m (89 ft)
1450 L/min (383 USG/min)
Honda GX270
270 cm
3
5.3 L (1.4 USG)
66 kg (146 lbs)
LWA 105 dB
4” (100 mm)
30 m (98 ft)
2050 L/min (542 USG/min)
Honda GX390
389 cm
3
6.1 L (1.6 USG)
82 kg (181 lbs)
LWA 106 dB
Parallel Pipe Thread or NPT
8 m (26 ft)
Air Cooled 4 stroke OHV Gasoline Engine
Automotive Unleaded Gasoline
SAE 10W-30 API SJ or later, for general use.
Recoil starter
None or 1 Strainer, 2 Hose Couplings, 3 Hose Bands, 1 Engine Tool Set
PERFORMANCE CURVE
*Performance ratings are guaranteed
minimum, not inflated maximum.
Water drain plug
Knob
Frame
Muffler
Fuel tank cap
Oil drain plug
Plug for
removing impeller
Priming plug
Discharge
Suction
Lifting eye
Handle
E
N
G
L
I
S
H
E
S
P
A
Ñ
O
L
F
R
A
N
Ç
A
I
S
Description
Trash Pumps provide superior performance in dirty water applications.
All Trash Pumps have silicon carbide mechanical seals,
high chrome cast impellers, and spheroid graphite ductile iron for
longer durability. Honda Engines standard with oil alert are
coupled with a lightweight aluminum die cast pump protected
by a roll cage. Volutes are a spheroid cast graphite
iron with high chrome impellers with silicon
carbide mechanical seals for longer life and less
maintenance. Self-priming up to 26 feet.
Applications are for dewatering construction,
industrial and civil sites where the water contains
larger solids of up to 1
1
/2 inches.
In addition horizontally-fixing, front cover handle can
fix lengthwise direction.
(
USG/min
)
100 200 300
DELIVERY VOLUME (L/min)
TOTAL HEAD (m)
400 500 600
30
25
20
15
10
5
0 800 1200 1400600200 400 1600 1800 2000 2200 1000
100
90
80
70
60
50
40
30
20
10
KTH-80S(GX270)
KTH-100S(GX390)
(
ft
)
Distributed by
PumpBiz, Inc.
800-PumpBiz.com

Koshin KTH-S Series Specifications

General

Brand	Koshin
Model	KTH-S Series
Category	Water Pump
Language	English

Summary

Trash Pump Introduction and Specifications

Performance Curve

Graph illustrating pump performance across different delivery volumes.

Key Model Specifications

Detailed specifications for KTH-80S and KTH-100S models.

Safety Guidelines and Warnings

Understanding Safety Indicators

Explanation of DANGER, WARNING, and CAUTION symbols.

Essential Safety Precautions

Critical safety rules for operating the trash pump.

Before Use Procedures

Accessory Check and Engine Oil

Verifying accessories and checking engine oil level.

Coupling and Hose Setup

Correct installation of couplings and hoses.

Pump Operation and After Use

How to Operate the Pump

Procedures for priming, running, and using the pump.

Post-Operation and Storage

Draining, cleaning, and storing the pump after use.

Troubleshooting

Recoil Starter Issues

Possible causes and solutions for recoil starter problems.

Low Delivery Volume

Diagnosing and fixing issues with reduced pump output.

Priming Failure

Identifying and resolving pump priming problems.

Engine Not Starting

Solutions for engine starting difficulties.

Oil Leakage Diagnosis

Addressing oil leaks from the muffler or air cleaner.

Maintenance

Mechanical Seal Replacement

Step-by-step guide for replacing the mechanical seal.

Parts Lists

KTH-80S Parts Breakdown

Detailed parts list and diagram for KTH-80S.

Parts Lists

KTH-100S Parts Breakdown

Detailed parts list and diagram for KTH-100S.