Promate PW2700 Operator's Manual page 18

Problem
Engine "hunts" or falters
Engine lacks power
No pressure or Low
pressure
Water leaking at pump
Pump will not draw
chemicals
No or low pressure (after
period of normal use)
Water Leaking at spray
gun/Spray wand
connection.
Probable Cause
Carburetor is running too
Rich or too lean
Cylinder pressure is low
Dirty air cleaner
Spray wand not sot to high
pressure
Inadequate water supply
Hose fitting leaks during high
pressure
Nozzle obstructed
Water filter screen obstructed
Defective pump
Air in hose
Choke lever in choke position
Throttle control lever is hot in fast
position
Loose connections
Piston packing worn
Worn or broken O-ring
Pump head or tubes damaged from
freezing
Spray wand not set to low pressure
Chemical hose/filter clogged
Chemical screen not in chemical
Chemical solution too thick
Chemical build-up in chemical
injector.
Worn seal or packing
Worn or obstructed valves
Worn unloader piston
Worn or broken O-ring
Loose hose connection
Solution
Call Customer Service
Call Customer Service
Replace air filter
See 3-5. Selecting the
Right Nozzle section
Water supply must by 7 GPM
Tighten hose fitting. Use
thread sealant tape it
necessary.
Clean Nozzle (See 7-1.
Maintenance)
Remove and clean filter.
Call Customer Service
Squeeze trigger to remove air
Move choke to "RUN" position
Move throttle control lever
from fast position.
Tighten connections
Clean or replace. Call
Customer Service.
Clean or replace. Call
Customer Service.
Clean or replace. Call
Customer Service.
See 3-5. Selecting the
Right Nozzle section
Clean hose/filter
Ensure end of chemical hose
is fully submerged into
chemicals
Dilute chemical. Chemical
solutions should have same
consistency as
water or replace.
Call Customer Service
Clean or replace. Call
Customer Service.
Clean or replace. Call
Customer Service.
Clean or replace. Call
Customer Service.
Replace
Tighten hose connection
18