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1. Place bottom of pressure washer frame on a

flat, even surface. Temporarily place unit on
blocks to ease assembly.

2. Slide axle through holes in frame, as shown in

Figure 1.

3. Slide a wheel over the axle.

NOTE

: Be sure to install wheel with raised hub

inboard.
4. Retain wheel on axle stud with retaining pin.

See Figure 1.

5. Repeat step 3 and 4 to secure second wheel.
6. Remove temporary blocks.

Add Engine Oil and Petrol

• Place pressure washer on a level surface.
• Damage to equipment resulting from failure to

follow this instruction will void warranty.

• Refer to engine operator’s manual and follow oil

and petrol recommendations and instructions.

NOTE

: Check oil often during engine break–in.

Refer to engine operator’s manual for
recommendations.

CAUTION

: Any attempt to crank or start the engine

before it has been properly filled with the
recommended oil will result in equipment failure.
• Refer to engine manual for oil and petrol fill

information.

• Damage to equipment resulting from failure to

follow this instruction will void warranty.

Connect Hose and Water Supply to

Pump

IMPORTANT

: To avoid pump damage, you must

assemble the nozzle extension to the spray gun and
attach all hoses before you start the engine.
1. Uncoil high pressure hose and attach one end

of hose to base of spray gun. Tighten by hand.

NOTE

: Remove and discard all pump shipping caps

before attaching hoses.

2. Attach other end of high pressure hose to high

pressure outlet on pump. Tighten by hand.

3. Before connecting garden hose to water inlet,

inspect inlet screen (Figure 2). Clean screen if it
contains debris or have it replaced if damaged.
DO NOT run pressure washer if inlet screen is
damaged.

4. Run water through your garden hose for

30 seconds to flush out any debris.

IMPORTANT

: Do Not siphon standing water for the

water supply. Use ONLY cold water (less than 38°C
/ 100°F).
5. Connect the garden hose (not to exceed 15 M /

50 FT in length) to the water inlet.Tighten by
hand (Figure 2).

CAUTION

: There MUST be at least three meters of

unrestricted garden hose between the pressure
washer inlet and any flow shut off device, such as a
‘Y’ shut-off connector or other convenience-type
water shut-off valve.
• Damage to equipment resulting from failure to

follow this instruction will void warranty.

NOTE

: This unit is equipped with a 14MM and a

20MM hose adapter. If using either adapter, obtain a
suitable hose clamp to secure the hose to the
adapter.
6. Turn ON water, point gun in a safe direction and

squeeze trigger to purge pump system of air
and impurities.

WARNING

: High pressure spray can cause paint

chips or other particles to become airborne.
• Always wear safety goggles when using this

equipment or in vicinity of where equipment is in
use.

• Before starting the pressure washer, be sure you

are wearing adequate safety goggles.

7

Figure 2

Summary of Contents for MAC 3.5PWA

Page 1: ...91GS Revision 1 2 20 2006 Upright Pressure Washer Operator s Manual Questions Help is just a moment away Call your technical helpline at 0845 300 2577 Before using this product read this manual and fo...

Page 2: ...d herein and marked on the product This manual contains information for a pressure washer that operates at 124 BAR at a flow rate of 450 liters per hour This high quality residential system features 1...

Page 3: ...engine Engage trigger lock when not in use When starting engine pull cord slowly until resistance is felt and then pull rapidly to avoid kickback After each starting attempt where engine fails to run...

Page 4: ...at may be caught in the starter or other rotating parts Tie up long hair and remove jewelry CAUTION Excessively high or low operating speeds increase risk of injury and damage to pressure washer DO NO...

Page 5: ...ris out of intake air H Recoil Starter Used for starting the engine manually Adjustable Nozzle not shown Always attached to nozzle extension Adjustable nozzle allows you to adjust spray pressure and s...

Page 6: ...ng Pressure Washer for Use If you have any problems with the assembly of your pressure washer or if parts are missing or damaged call the technical helpline at 0845 300 2577 If calling for assistance...

Page 7: ...hand NOTE Remove and discard all pump shipping caps before attaching hoses 2 Attach other end of high pressure hose to high pressure outlet on pump Tighten by hand 3 Before connecting garden hose to w...

Page 8: ...from entering a confined area through windows doors ventilation intakes or other openings Do not operate pressure washer inside any building or enclosure Ensure exhaust gas is kept away from any windo...

Page 9: ...occur on contact Exhaust heat gases can ignite combustibles structures or damage petrol tank causing a fire Do not touch hot surfaces and avoid hot exhaust gases Allow equipment to cool before touchin...

Page 10: ...ce filter end of detergent siphoning tube into detergent container CAUTION Keep the detergent siphoning tube from coming in contact with the hot muffler When inserting the filter into a detergent solu...

Page 11: ...f you run the engine on your pressure washer for 3 5 minutes without pressing the trigger on the spray gun circulating water in the pump can reach temperatures above 52 C 125 F The system engages to c...

Page 12: ...n into threaded end of nozzle extension Direction does not matter Push screen in with eraser end of pencil until it rests flat at bottom of opening Take care to not bend screen 4 Place o ring into thr...

Page 13: ...peated skin contact with used motor oil Used motor oil has been shown to cause skin cancer in certain laboratory animals Thoroughly wash exposed areas with soap and water KEEP OUT OF REACH OF CHILDREN...

Page 14: ...k 5 Check and clean inlet hose strainer 6 Provide cooler water supply 7 Clear blocks in outlet hose 8 Replace gun 9 Clean orifice 10 Contact local service facility Detergent fails to mix with spray 1...

Page 15: ...ithin the relevant time period we will either replace all defective parts or at our discretion replace the unit free of charge with the same item or items of a greater value and or specification 3 Thi...

Page 16: ...MacAllister Power Tools 1 Hampshire Corporate Park Chandlers Ford Eastleigh Hants SO53 3YZ UK 0845 300 2577...

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