HydraMaster Boxxer 421, Руководство пользователя

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Page 9-9: Water and Chemical
Boxxer 421
2.5.1. Cleaning tool jet is too large or worn out. Inspect jet. Replace if necessary.
2.5.2. Cleaning solution pressure is too high. Adjust pressure to normal. Inspect pressure
gauge for accurate reading.
2.6. Heat exchangers have hard water scale build up internally . Descale system.
1.0. System will not prime
1.1. Check valves in chemical pump are faulty . Remove valves and inspect. Clean or
replace as necessary.
1.2. Chemical pump diaphragm is faulty . Remove and inspect. Replace as necessary.
1.3. Check valve in high pressure pump (the one that the chemical pump attaches to) is
faulty
. Remove valve and inspect. Clean or replace as necessary.
1.4. Filter on feed line in chemical jug is clogged . Inspect and clean.
1.5. Feed line from chemical jug is loose, pinched or cut . Inspect and repair.
1.6. Three-way prime valve is faulty . Inspect valve for leaks between ports. Replace as
necessary. Note: if the chemical system has been run dry, it is frequently necessary to
insert the prime hose from the chemical jug into the vacuum inlet for a “boost” to purge all
of the air from the system. Machines produced after April, 2002 will have the prime hose
connected directly to the vacuum system.
2.0. Chemical flow is unstable or low
2.1. Air in lines . Check that all fittings and connections are tight and in good condition. Repair
or replace as necessary.
2.2. Filter screen in chemical jug is partially clogged . Inspect and clean.
2.3. Three-way chemical valve is faulty . Inspect valve for leaks between ports. Replace as
necessary.
Chemical System
Troubleshooting