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15 

MAINTENANCE

 

 
 

WARNING:

 Disconnect the spark plug before performing any maintenance. 

 

CHECK FOR DAMAGED OR WORN PARTS 

 
Contact customer service for replacement of damaged or worn parts. 

 
ON/OFF Switch --

 Ensure ON/OFF switch functions properly by pushing and releasing the switch. 

Make sure engine stops. Wait 5 seconds before attempting to restart unit to allow switch to reset. Restart 
engine and continue. 
 

Fuel Tank

 

 Immediately discontinue use of unit if fuel tank shows signs of damage or leaks. 

 

Debris Shield --

 Discontinue use of unit if debris shield is damaged. 

 

CLEAN AIR FILTER 

 
A dirty air filter will decrease engine performance and increases fuel consumption and harmful 
emissions. It is important to clean the filter after every 5 hours of operation. 
1.

 

Clean the filter cover, and the area around it to keep dirt from falling into the carburetor chamber 
when removed. 

2.

 

Press the tabs on the air filter cover to remove the cover and air filter. 

NOTE:

 To avoid creating a fire hazard or producing harmful evaporative emissions, do not clean filter in 

gasoline or other flammable solvent. 
3.

 

Wash the filter in soap and water. 

4.

 

Allow the filter thoroughly dry be for reinstalling. 

5.

 

Replace parts. 

 
 

REPLACE SPARK PLUG 

 
Replacing the spark plug each year will help ensure that the engine starts easier, and runs better. Set spark 
plug gap at 0.025 inch (0.6 mm). The ignition timing is fixed and does not require adjustment. 
 
 
 

STORAGE  

 

CAUTION:

 Perform the following steps after each use: 

 

Allow engine to cool before storing or transporting. 

 

Store unit and fuel in a well-ventilated area where fuel vapors cannot reach sparks or open flames 
from water heaters, electric motors or switches, furnaces, etc. 

 

Store unit with all guards in place. Position unit so that any sharp object cannot accidentally cause 
injury. 

 

Store this unit and the fuel well out of the reach of children. 

 

 
 

Summary of Contents for PS4531

Page 1: ...Model PS4531 Have product questions or need technical support Please feel free to contact us Website www Amerisuninc com www powersmartusa com Toll free 1 800 791 9458 Mon Fri 9 5 EST Email support a...

Page 2: ...2...

Page 3: ...list 17 Warranty 21 TECHNICAL DATA 31cc 4 Cycle Gas 2 in 1 Brush Cutter String Trimmer Model PS4531 Engine type 4 Cycle Single Cylinder Displacement 31 cc Fuel tank capacity 20 3 fl oz Oil capacity 2...

Page 4: ...operate on regular unleaded gasoline and may include the following emission control systems EM Engine Modifications and TWC Three Way Catalyst if so equipped SAFETY INFORMATION Before operating this...

Page 5: ...te to the terrain that you will be clearing Being fully covered will also help to protect you from debris and or pieces of toxic plants thrown by the spinning line blade A face or dust mask if recomme...

Page 6: ...ttention to warning labels on the engine identifying hot parts of the machine Allow engine to cool down after use before touching engine or areas of the engine that become hot during use CAUTION Misus...

Page 7: ...re storing or transporting it in a vehicle Empty the fuel tank before storing or transporting the unit Run out of fuel left in the carburetor by starting the engine and letting it run until it stops S...

Page 8: ...t with a portable container rather than from a gasoline dispenser nozzle 10 Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete Do not...

Page 9: ...the components that control of your brush cutter 1 Recoil Starter Handle 9 Shoulder Strap 2 Spark Plug 10 Throttle Trigger 3 ON OFF Switch 11 Oil Fill Dipstick 4 Handlebar 12 Fuel Tank 5 Coupler 13 Ch...

Page 10: ...wrong hole could lead to serious injury or damage to the unit ATTACHING THE PLASTIC BLADE SHIELD CAUTION The blade shield must be properly installed This shield helps provide partial protection to the...

Page 11: ...de and retaining washer onto the shaft of the gearbox 8 Place the cupped washer onto the shaft Make sure the cupped side of the washer is toward the blade 9 Install the bottom blade nut by threading o...

Page 12: ...ine To add gasoline follow these steps 1 Make sure the product is on a level surface 2 Unscrew fuel cap and set aside NOTE The fuel cap may be tight and hard to unscrew 3 Slowly add unleaded gasoline...

Page 13: ...head near and parallel to the ground and not crowded into material being cut RISK OF KICKOUT Blade Thrust This reaction can only occur when using a bladed unit This sudden and violent reaction can ca...

Page 14: ...g and balance Keep blade below waist level it will be easier to maintain control of unit Do not raise the engine above your waist as the blade can come dangerously close to your body Do not swing unit...

Page 15: ...to the carburetor chamber when removed 2 Press the tabs on the air filter cover to remove the cover and air filter NOTE To avoid creating a fire hazard or producing harmful evaporative emissions do no...

Page 16: ...tart Engine ON OFF switch is off Engage ON OFF switch Spark plug wire disconnected Connect spark plug wire Fuel tank empty or stale fuel Fill tank with clean fresh gasoline Engine not primed Press pri...

Page 17: ...17 EXPLODED VIEW AND PARTS LIST Engine exploded view...

Page 18: ...ve 1 22 100011451 0002 Nut M5 8 81 100004382 Return Spring 1 23 100005549 Insulator Gasket A 1 82 100004329 Drive Timing Gear 1 24 100011146 0001 Bolt M5 55 2 83 100002590 Crankcase 1 25 100005583 Ins...

Page 19: ...Brush cutter String trimmer exploded view 19...

Page 20: ...5 Screw M5x25 1 24 303170012 Transmission Shaft 2 8 302100010 Fixed Ring 1 25 303060134 Bush 6 9 303030120 Nut M5 1 26 303020084 Screw M6x16 2 10 202110046 Straight Handle Component 1 27 303071040 Bra...

Page 21: ...this Limited Warranty you must return the entire power tool product transportation prepaid to PowerSmart The owner must include a legible copy of the original receipt which shall list the date of purc...

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