Cleaning And Storage - Holmatro DPU31 Manual Del Propietário

9.2.4 Pressure relief device
A pressure relief device (PRD) is provided for relieving pressure in the hydraulic hose. The
pressure relief device is only used to relieve pressure in hoses caused by elevated
temperatures (i.e. if the hoses are left lying in the hot sun). Follow the operation instructions
below for proper use of the relief device and observe all warnings
The pressure relief device (PRD) hanging on front of the hydraulic rescue pump is only to be
used on pressurized hose caused by elevated temperatures (i.e. if the hoses are lying in the
hot sun.)
Open knob all
The way out counter-
clockwise.

9.2.5 Cleaning and storage

Clean the unit and any accessories used before storage.
* Clean all quick-action couplings and dust caps. Ensure that the dust caps are clean
and installed.
* Check the pump for external damage and/or oil leakage.
* Dry the unit if it has been used in wet conditions. Lightly oil the steel parts.
* Clean the pump with a mild soap solution and dry thoroughly.
* Always store the pump in a horizontal position.
* Ensure that the pump cannot tilt during transport. This can cause leakage of hydraulic
oil or gas.
* Check that the engine switch is in the OFF or "0" position.
14
1
Position male coupler on
Never use the pressure relief device (PRD) on
the hydraulic pump valve control, on hoses, or
on rescue tools when the hydraulic pump is in
operation and is generating pressure. The relief
device may be damaged and serious injury may
occur. Wear protective glasses.
2
hose into the PRD and
between the roll pins.
3
Always turn open side
of the relief device
away from you to
prevent oil spraying
upwards into the
operator's eyes.
Turn the knob in to
release pressure in the
hose.