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PROBLEM 

 CAUSE 

SOLUTION

Pump works hard or does not 

pressurize the tank.

Plunger o-ring either not lubricated or 

damaged.

Apply petroleum jelly or grease 

around outside of plunger o-ring. 

Check for cracks or other damage 

and replace if necessary.

Spray solution or air leaks into pump 

cylinder.

Check valve on bottom of cylinder 

is prevented from sealing by dirt, 

residue or damage.

Remove the pump assembly and 

examine the check valve. Clean if 

dirty; replace if necessary.

Hose leaks air at tank connection.

Tank nut is loose.

Tighten hose tank nut.

Hose insert o-ring is damaged.

Replace hose insert o-ring.

Flow control leaks.

Improper assembly.

Refer to “Flow Control to Hose” 

and “Wand to Flow Control” 

assembly instructions.

Bad spray pattern or low spray 

volume.

Nozzle is clogged.

Remove nozzle and clean; remove 

wand and clean. 

Low pressure in sprayer.

Re-pressurize the tank.

Nozzle leaks when flow control is 

closed.

Flow control remaining open (lever is 

locked on).

Completely disassemble flow 

control. Inspect all components, 

clean and lubricate all seals or 

replace flow control.

Leak at tank opening.

Pump assembly not sealed tightly 

into tank.

Thoroughly clean pump cylinder 

gasket or o-ring and surrounding 

area and apply grease or 

petroleum jelly to pump gasket or 

o-ring.

Damaged pump cylinder gasket or 

o-ring.

Replace gasket or o-ring.

Fluid leaks from pressure relief 

valve.

Tank is over filled.

Release pressure by following 

“Releasing Pressure” instructions. 

DO NOT USE the pressure relief 

valve for releasing pressure. 

Remove excess fluid.

TROUBLESHOOTING

Содержание GS-400

Страница 1: ...6986307 STD 06 11...

Страница 2: ...1 1 11 5 1 4 6 12 10 3 2 9 7 13 8...

Страница 3: ...2 Fig 2 15 14 1 16 1 2 2a 3 Fig 3 1 2 3 2 3 4 2 2 3...

Страница 4: ...3 Fig 5 1 2 3 Fig 4 1 2 3 3 5 6 10 10 12 Fig 6 STOP START...

Страница 5: ...spray only air 2 Lubricate the o ring on the hose insert and then push into the threaded tank nipple 16 until fully seated 3 Screw hose nut 1 onto threaded tank nipple Firmly tighten it by hand FLOW C...

Страница 6: ...ushing of the sprayer hose and flow control with soapy water then clean water WARNING Do not store chemicals in the tank If the chemical is stored in the tank it can clog the system as it dries and de...

Страница 7: ...Wand to Flow Control assembly instructions Bad spray pattern or low spray volume Nozzle is clogged Remove nozzle and clean remove wand and clean Low pressure in sprayer Re pressurize the tank Nozzle...

Страница 8: ...7...

Страница 9: ...amp 18 tank 19 add liquid outlet 20 O ring 21 27 combination hose 21 small mash 22 induction manifold 23 seal embedded parts 24 O ring 25 hose nut 26 hose 27 flow control hose nut 28 38 flow control 2...

Страница 10: ...9 NOTE...

Страница 11: ...10 NOTE...

Страница 12: ...it was not designed or is not suited and no repairs alterations or modifications have been attempted by other than an Authorised Service Agent This guarantee will not apply if the tool is damaged by a...

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