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DURING RUNNING
Check the efficiency of the hydraulic circuit whilst pump is running: drips
or signs of wear on the hoses can cause injuries as well as prejudicate the
life and performance of the machine.
If the circuit recycles by means of a by-pass, avoid running the pump for
long periods of time without pulling the trigger since this heats the liquid
up and could damage the seals.
TURNING OFF AND STORING PRECAUTIONS
1. Pull the trigger whilst turning off the machine, to make sure no high
pressure spraying is possible.
2. Turn off the motor.
3. Turn off inlet liquid supply.
S
TORING
If the pump is not used for more than 30 days, proceed as follows:
- empty it of all pumped liquid, taking care to do the same with all pipings
and accessories,
- clean it by removing any calcareous deposits,
- wrap up in a protective cover,
- store in a clean and dry place, protected from frost.
TROUBLE SHOOTING
PROBLEM CAUSE REMEDY
The pump doesn't reach required pres-
sure
Unsuitable or worn out nozzle
Reg. valve seat worn out
Replace nozzle
Replace valve seat
The pump is noisy
Pump sucking air
Check suction manifold
Pressure gauge fluctuates
Valves blocked by foreign bodies, or
worn
Packing worn
High temperature of pumped liquid
Clean or replace valves
Replace packing
Reduce temperature of pumped liquid
Water leaks from head
Head O-Ring worn
Replace O-Ring
Oil leaks from the bottom of the pump
Oil seals worn
Replace seals
Over pressure when gun is closed
Leaking in unloader valve and incor-
rect setting
Control the valve and set new pressure
level
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1
2
2
3
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Water leaks from the bottom of the
pump
Piston packing worn
Replace piston packing