Kushlan KPT 36 Service manual

Operating Instruction and
Parts Manual for
10601 S. Sam Houston Pkwy W., Suite 140
Houston, TX 77071
281-313-2506 • 800-469-4178
KPT 36/48
Walk Behind
Power Trowel

TABLE OF CONTENTS 2
Contents ……………………………………………...…1
Forward …………………………………………...…… 2
Feature…………………………….......................………2
Specication ………………………….................………2
Safety precautions …………………………………...… 3
Maintenance record ……… ……………………....……4
Maintenance schedule…………................................……5
Operation elements………................................…………7
Operation (oating)…………………..........................…8
Operation (nishing)…………………………............…8
Starting & stopping procedure…………………………9
1. Before operation checks…………………………...…9
2. Starting engine procedure……………………………9
3. Stopping engine procedure……………………….…11
4. Setting engine speed………………………...………12
Lubrication………………………………………….…12
1. Engine oil lever check………………………………12
2. Engine oil change……………………………………13
Spark plugs…………………………………………….13
Carburetor adjustment……………………………..…14
Air lter service………………………………………..15
Storage…………………………………………………16
Troubleshooting…………………………………….…16
Diagram…………………………..……………………19
FOREWARD
• For your own safety and protection from bodily injuries,
carefully read, understand and follow the safety instructions
in this manual.
• Please operate and maintain your machine in accordance
with the instructions in this manual.
• Defective machine parts are to be replaced as soon as
possible.
• Keep this owner's manual handy, so you can refer to it at
any time.
• No part of this publication may be reproduced without
written permission.
• We expressly reserve the right to technical modications-
even without express due notice - which aim at improving
our machines or their safety standards.
FEATURE
QJM1000 Walk-behind Power Trowel can be used in surface
nishing of concrete road, terrace, boatyard, airport and oor
etc.
Deadman switch design provide safe. A sophisticated system to
protect the operator from an out-of-control spinning handle.
When the operator is using a walk-behind power trowel and
let go of the safety sensor detects the motion of the handle and
stops the engine before the handle reaches a 45-degree rotation.
e handle can be adjusted due to the stature of operator, and it
oers maximum control and comfort for the operation. e alloy
blades which have get heat treatment are worn well. Low center
of gravity provides workers with safe and stable operation.
SPECIFICATION
KPT 36
Weight: 83kg
Diameter: 980mm
Float pan diameter: 945mm
Trowel blade rev: 70r/min~140r/min
Overall diameter: 1820×945×980mm
Blades: 4
Gearbox oil: WA460
Gearbox oil capacity: 950ml
Power output: 5.5hp
Engine type: HONDA GX160
Fuel capacity (L): 3.6
Engine oil type: Recommended
SAE10W-30
Engine oil capacity (L): 0.6
KPT 48
Weight: 119kg
Diameter: 1175mm
Float pan diameter: 1180mm
Trowel blade rev: 70r/min~140r/min
Overall diameter: 2080×1170×1020mm
Blades: 4
Gearbox oil: WA460
Gearbox oil capacity: 950ml
Power output: 9/13hp
Engine type: HONDA GX270/390
Fuel capacity (L): 6/6.5
Engine oil type: Recommended
SAE10W-30
Engine oil capacity (L): 1.1

SAFETY PRECAUTIONS
1. Before starting operation, the operator has to check that all control and safety devices function properly.
2. Always keep unauthorized, inexperienced, untrained people away from this machine.
3. Rotating and moving parts will cause injury if contacted. Make sure guards are in place. Keep hands and feet away
from moving parts.
4. e engine must always be stopped before attempting any repair or adjustments. Ignition switch should be o.
5. To avoid slipping and loss of control when starting the trowel, the operator should maintain good footing. It is
recommended that the operator wear safety shoes for added protection.
6. Be careful when working around pipes or ducts protruding from the oor or slab edges. If the trowel blades hit such
obstacles, damage to the machine or possible operator injury may result.
7. When starting the machine, do not exceed 1/3 throttle position. A higher setting may cause the Centrifugal clutch to
engage and the handle to rotate.
8. Be careful not to come in contact with the muer when the engine is hot, serious burns may result!
9. Over time, the blades will form a sharp edge. Be careful when handling the old blades.
10. Gasoline is extremely ammable, and gasoline vapor can explode. Refuel outdoors, in a well-ventilated area, and keep
other ames and sparks away.
11. Do not ll the fuel tank completely. Aer refueling, tighten the fuel tank cap securely.
12. Before beginning your preoperational checks, be sure the engine is level and the engine switch is in the OFF. e max.
gradient of 20° must not be exceeded when the engine working.
13. Don’t allow children to operate the engine. Keep children and pets away from the area of operation.
14. Aer each use your machine should be cleaned to remove any dust and debris from the undercarriage and
surrounding components.
15. When the machine start working you should be check the clutch whether or not wear and tear. If the clutch will have
3/4 worn and torn, you must change new clutch-ring.
16. Check that all shields and covers are in place, and all nuts, bolts, and screw are tightened when the machine working.
Make sure put the cable while the machine working.
3
MAINTENANCE RECORD
Due to the nature and environment of use, Walk-behind Power Trowels could be exposed to severe operating
conditions. Some general maintenance guidelines will extend the useful life of your trowel.
1. e initial service for your trowel should be performed aer 25 hours of use, at which time your mechanic
(or authorized repair shop) should complete all of the recommended checks in the schedule below. e chart is handy
for keeping a record of the maintenance performed and the parts used for servicing your trowel.
2. Regular service according to the schedule below will prolong the life of the Walk-behind Power Trowel and prevent
expensive repairs.
3. Keeping your Walk-behind Power Trowel clean and free from debris is the single most important regular maintenance
operation, over and above the checks in the service schedule above, that can be performed. Aer each use your Walk
behind Power Trowel should be cleaned to remove any dust and debris from the undercarriage and surrounding
components. Use of a power washer will make clean up quick and easy, especially if a non-stick coating was applied
prior to use.
4. In the Service Schedule below, items that should be checked, replaced or adjusted are indicated by "o" in the
appropriate column. Not all Walk-behind Power Trowel models include the same features and options and as such not
all service operations may have to be performed. For ease of recording place a checkmark (√) through the "o" when the
item is complete. If an item is not required or not complete place an "×" through the "x" in the box.
CAUTIONS! Over time, if the blades will have 3/4 worn and torn, you must change new trowel blades.

4
MAINTENANCE SCHEDULE
Each use Aer 1.5
Months
or 50 hrs
Each 3
Months
or 100 hrs
Each 6
Months
or 200 hrs
Each 9
Months
or 300 hrs
Each 12
Months
or 400 hrs
General Inspection:
Guards Check O O O O O
Warning Check O O O O O
Stickers
Test Run Check Operation O O O O
Controls:
Dead-Man Check O O O O O O
Switch Operation
Pitch Check O O O O O O
Control Assembly Lubricate O O O O O
Engine:
Engine oil Check level O O O O O O
Change O O O
Engine Oil Replace O O
Filter
Oil Cooler Clean O O O O
Cooling Fins Clean O O O O O
Air cleaner Check-clean O O O O O
Replace O
Air Intake Line Check O
Replace 2 yrs
Fan Belt Check tightness O O
Replace 500 hrs
Valve Clearance Check-Adjust O O
Fuel lter Check & Clean O O O O
Replace O O
Fuel Tank Clean 500hrs
Engine wiring Check O
Drive Train:
Clutch/Pulley Check O O O O O O
Operation
Spider plate assembly Check O O O O O O
Lubricate O O
V-Belt Check O O O O O O
Blades Check O O O O O O
Gearbox:
Gearbox oil Check level O O
Check O O O
Gearbox Check Operation O O O O
Breathers
OPERATION ELEMENTS
V-belt is driven gearbox by engine, and then transmit torque to trowel and the machine working. e trowels can be
adjusted due to the stature of operator through pitch control assembly. Dead man switch designs provide safe and
stable operation. Holding the deadman lever before start the engine, and loosening deadman lever the machine will
stop working.
OPERATION (Floating)
When the slab has set suciently rm that the operator’s footprint leaves a very slight depression on the surface of the
slab, it is ready for the oating operation.
Guiding the machine on the slab is very simple; a slight upward li of the handle causes the machine to travel to the
le. Holding the handle in the neutral position, will slowly cause the machine to spin in one spot. Slight downward
pressure on the handle cause the machine to the travel to the right. Best results are obtained by covering approximately
4” on each turn. In other words, let the machine move right or le, backwards or forwards, approximately 4” with each
revolution of the trowels. To ll a hole or cut down hump, move the unit back and forth over the problem area.
Under normal operating conditions the machine should cover as much as 1000 sq. . in about 15 minutes. It is
recommended that a slight tension on the trowel control cable, (but not a denite tilt), during the oating operation
will cause the machine to operate much smoother. Aer the oated slab has set suciently, it is ready for the nishing
operation.
CAUTION! Do not let the machine stand in one spot on the so cement. Li from the slab when the oating
operation is complete.
Routine
Service Intervals

Model 350WSB & 350WSB With Stand Parts List 5
OPERATION (Finishing)
When starting the nishing operation, never set the trowels up over 1/4" pitch.
Aer the oating operation, the rst thing to do is to remove the oating disc from the blades. Clean the blades, spider
plate and disc from cement paste collected during the oating operation. Increase the blade pitch up to a maximum of 1
cm for the rst nishing operation and then continue to increase the pitch on the following nishing operations. Con-
tinue the nishing passes until you obtain the desired oor nish. e time required between each nishing pass is again
dependent on the weather conditions and water content of the concrete etc. If some areas of the concrete set/harden too
fast you may apply a small amount of water using a hand brush as an aid to achieving the nish.
STARTING & STOPPING PROCEDURE
1. Before operation checks
a. Check the oil level: Before beginning your preoperational checks, be sure the engine is level and the engine switch
is in the OFF. Remove the ller cap/dipstick and wipe it clean. Insert and remove the dipstick without screwing it
into the ller hole. Check the oil level shown on the dipstick. If the oil level is low, remove the oil ller cap, and ll to
the upper limit mark on the dipstick with recommended oil. Screw in the ller cap/dipstick securely.
SAE 10W-30 is recommended for general use. e engine is certied to operate on unleaded gasoline with a re
search octane rating of 90 or higher. Unleaded gasoline produces fewer engine and spark plug deposits and extends
exhaust system life. Never use stale or contaminated gasoline or an oil/gasoline mixture. Avoid getting dirt or water
in the fuel tank.
b. Check air lter: Remove the air cleaner cover and inspect the lter. Clean or replace dirty lter elements. Always
replace damaged lter elements. If equipped with an oil-bath air cleaner, also check the oil level.
Notice! Running the engine with a low oil level can cause engine damage.
2. Start engine/Stopping engine procedure
a. Move the fuel valve lever to the ON position. b. Move the choke lever to the CLOSE position. If the engine is
warm or the air temperature is high, move the control lever away
from the OPEN position as soon as the engine starts.
c. Move the throttle lever away from the
SLOW position, about 1/3 of the way to
toward the FAST position.
d. Turn the engine switch to the ON position.

6
e. Pull the starter grip lightly until you feel resistance,
then pull briskly. Return the starter grip gently.
CAUTION! Do not allow the starter grip to snap back
against the engine. Return it gently to prevent damage
to the starter.
3. Stopping the engine
a. Move the throttle lever to the SLOW position.
f. If the chock lever or chock rod (applicable types) has been
moved to the CLOSED position to start the engine,
gradually move it to the OPEN position as the engine warms
up.
c. Turn the fuel valve lever to the OFF position.
b. Turn the engine switch to the OFF position.
4. Setting engine speed
Position the throttle lever the desired engine speed.

7
LUBRICATION
1. Engine oil lever check
Check the engine oil level with the engine stopped and in a level position.
1. Remove the ller cap/dipstick and wipe it clean.
2. Insert and remove the dipstick without screwing it into the ller neck.
Check the oil level shown on the dipstick.
3. If the oil level is low, ll to the edge of the oil ller hole with the
recommended oil.
4. Screw in the ller cap/dipstick securely.
2. Engine oil change
Drain the used oil while the engine is warm. Warm oil drains quickly and completely.
1. Place a suitable container below the engine to catch the used oil, then remove the ller cap/dipstick, drain plug, and washer.
2. Allow the used oil to drain completely, then reinstall the drain plug, washer, and tighten drain plug securely.
Notice! Please dispose of used motor oil in a manner that is compatible with the environment. We suggest you take
used oil in a sealed container to your local recycling center or service station for reclamation. Do not throw it in the
trash; pour it on the ground, or down a drain.
3. With the engine in a level position, ll to the outer edge of the oil ller hole with the recommended oil.
Notice! Running the engine in a low oil level can cause engine damage.
4. Screw in the ller cap/dipstick securely.
SPARK PLUGS
Recommended spark plugs: BPR6ES (NGK). For good performance, the spark plug must be properly gapped and free
of deposits.
Notice! An incorrect spark plug can cause engine damage.
1. Disconnect the spark plug cap, and remove any dirt from around the spark plug area.
2. Remove the spark plug with a 13/16-inch spark plug wrench.
3. Inspect the spark plug. Replace it if the electrodes are worn heavy carbon buildup is found, or if the insulator is
cracked or chipped.
4. Measure the spark plug electrode gap with a suitable gauge. e gap should be 0.028-0.031 in (0.70 - 0.80 mm).
Correct the gap, if necessary, by carefully bending the side electrode.
5. Check that the spark plug washer is in good condition. Install the spark plug carefully, by hand, to avoid cross-threading.
6. Aer the spark plug seats, tighten with a 13/16-inch spark plug wrench to compress the sealing washer.
7. When installing a new spark plug, tighten 1/2 turn aer the spark plug seats to compress the washer.
8. Aer the spark plug seats, tighten with a 13/16-inch spark plug wrench to compress the sealing washer. If reinstalling
the used spark plug, tighten 1/8 - 1/4 turn aer the spark plug seats. If installing a new spark plug, tighten 1/2
turn aer the spark plug seats.
9. Attach the spark plug cap.
NOTICE! e recommended spark plug has the correct heat range for normal engine operating temperatures. A loose
spark plug can overheat and damage the engine. Over tightening the spark plug can damage the threads in the cylinder
head.
CARBURETTOR ADJUSTMENT
1. Start the engine outdoors, and allow it to warm up to operating temperature.
2. Move the throttle lever to its slowest position.
3. Turn the throttle stop screw to obtain the standard idle speed.
Standard idle speed: 1440r/min

8
AIR FILTER SERVICE
A dirty air lter will restrict air ow to the carburetor, reducing engine performance. If you operate the engine in very
dust areas, clean the air lter more oen than specied in the MAINTENANCE SCHEDULE.
WARNING! Never use gasoline or low ammable point solvents for cleaning the air cleaner element. A re or explo-
sion could result.
NOTICE! Operating the engine without an air lter element, or with a damaged air lter element, will allow dirt to
enter the engine, causing rapid engine wear.
1. Remove the wing nut from the air cleaner cover, and remove the cover.
2. Remove the wing nut from the air lter, and remove the lter.
3. Remove the foam air lter element from the paper lter.
4. Inspect both air lter elements, and replace them if they are damage.
5. Paper air lter element: Tap the lter element lightly several times on a hard surface to remove excess dirt, or blow
compressed air through the lter element from the inside out. Never try to brush the dirt o; brushing will force dirt
into the bers.
6. Foam air lter element: Clean in warm soapy water, rinse, and allow to drying thoroughly. Or clean in nonammable
solvent and allow to drying. Dip the lter element in clean engine oil, and then squeeze out all excess oil. e engine
will smoke when started if too much oil is le in the foam.
STORAGE
e following steps should be taken to prepare your Walk-behind Power Trowel for extended storage.
1. Close fuel shut o valve.
2. Siphon excess gasoline from tank.
3. Start engine until it stops from lack of fuel. is will use up all the fuel in the carburetor and prevent formation of
deposits due to evaporation of fuel.
4. Remove spark plug and pour 2 oz. of SAE-30 or SAE-40 motor oil into the cylinder. Slowly crank the engine 2 or 3
times to distribute the oil throughout the cylinder. is will help prevent rust during storage. Replace spark plug.
5. Store the unit in an upright position in a cool, dry, well ventilated area.
TROUBLESHOOTING
1. WON'T START
• rottle fully open
• Hand lever wire broken
• No gas
• Dirty gas
• No oil
• Gas lter plugged
• Gas line plugged
• Hole in gas line
• Gas supply valve turned o
• Dead-man safety switch is o
• Safety switch wire or connectors
not making good contact
• Other engine problems (Refer to
engine manual)
2. STARTS BUT NO HIGH SPEED
• Engine problems • rottle lever and connectors loose or out of adjustment
• rottle cable broken or seized • Clutch shoes worn
3. STARTS AT HIGH SPEED, WON'T SLOW DOWN
• Same as above
4. ENGINE WON'T STOP
• Safety switch, wire or connectors not making good contact •Micro-switch burnt out
5. ENGINE STARTS BUT WON'T TURN TROWELS AT ANY SPEED
• Clutch seized
• No weights in clutch
• Wrong belt
• Gearbox seized
• Broken or missing key
— Clutch seized
— Pulley
— Worm gear (countersha)
— Main gear
— Spider plate

9
6. TROWELS TURN, ENGINE AT IDLE
• Idle too fast
• Belt too tight • Clutch seized • Pulley out of alignment
7. TROWELS BLADES WEARING UNEVENLY
• Spider plate seized
• Arms bent • Adjusting screws (carriage bolts) incorrectly set • Floating disc not evenly attached to the blades
8. MACHINE JUMPS ON FLOOR
• Concrete hardened on bottom of spider plate
• Trowels unevenly worn/bent
• Spider plate seized
• Spider plate loose
• Trowel arms bent
• Adjusting screws (carriage bolts) incorrectly set
• Main sha bent
9. PITCH CONTROLS WILL NOT OPERATE BLADES
• Cable broken or out of adjustment
• Pressure plate assembly contaminated with concrete debris
• Slot screw missing (under-side of handle)
• Spider plate seized
• Pressure plate and/or yoke arm broken or badly worn
• Hand crank adjuster malfunctioning
10. BELT WEARING RAPIDLY
• Belt is too tight
• Pulley out of alignment • Wrong belt/defective belt • Clutch sticking • Gearbox seizing
11. OIL LEAKS
a. Top of gearbox
• Gearbox seal warn
• Engine leaks
• Too much oil in gearbox
b. At main sha or countersha
• Sha and/or seal worn
• Retaining screw(s) loose
12. TROWEL BLADES WILL NOT TURN
• Yoke arm broken • Key sheared • Gearbox malfunction
Diagram - 36
1. Walk-behind power trowel assembly

10
Item Part No. Part name Qty
1 36001 Handle assembly 1
2 36002 Washer 10 4
3 36003 Stud M10×45 4
4 36004 Handle bracket 1
5 36005 Yoke arm 1
6 36006 Retaining ring 1
7 36007 Pin 1
8 36008 Screw M10×25 7
9 36009 Mounting rails I 1
10 36010 Gearbox assembly 1
11 36011 Pressure plate assembly 1
12 36012 Spider plate assembly 1
13 36013 Bolt M10x45 4
14 36014 Releaser hood 1
15 36015 Engine GX160 1
16 36016 Washer 8 4
17 36017 Lock Nut 8 4
18 36018 Hoist hook 1
19 36019 Bolt 5/16”×20 4
20 36020 Clutch A 1
21 36021 Pulley 1
22 36022 Screw M8×16 2
23 36023 Washer 10 4
24 36024 Belt-mounting plate 1
25 36025 Bolt M8×16 2
26 36026 Belt A-27 1
27 36027 Bolt M6×20 4
28 36028 Gasket 6 2
29 36029 Washer 6 2
30 36030 Belt guard 1
31 36031 Shock mount 4
33 36033 Lock NutM10 4
34 36034 Washer 10 4
35 36035 Mounting rails II 1
36 36036 Guard ring 1
37 36037 Lock NutM10 4
Item Part No. Part name Qty
1 36201 Pin 5×35 1
2 36202 Gasket 10 1
3 36203 Bolt M10×200 1
4 36204 readed rod 1
5 36205 Retaining ring 35 1
6 36206 Bearing 51203 1
7 36207 ScrewM6×8 1
8 36208 Bushing 1
9 36209 rottle cable 1
10 36210 Lock Nut M12 2
11 36211 Washer 12 2
12 36212 Retaining ring 8 1
13 36213 Rigid handle 1
14 36214 Pin 1
15 36215 Pulley 1
16 36216 Bolt M12×80 2
17 36217 Gasket 12 2
18 36218 Carry bar 1
19 36219 Washer 5 2
20 36220 Gasket 5 2
21 36221 Screw M5×12 2
22 36222 Bolt M8×12 1
23 36223 Deadman switch 1
24 36224 Wheel I 1
25 36225 rottle control 1
26 36226 Wheel II 1
27 36227 Handle 1
28 36228 Cable-throttle 1
Handle Part ListKPT 36 Power Trowel Part List
Item Part No. Part name Qty
1 36301 Washer 1
2 36302 Washer 1
3 36303 Screw M4×30 1
4 36304 Sphere 1
5 36305 Lever 1
6 36306 Switch box 1
7 36307 Switch cover 1
8 36308 Screw M4×25 3
9 36309 Washer 4 2
10 36310 Nut M4 2
Deadman Switch Part List