Doosan D20S-5 Operation & Maintenance Manual page 170

service indicator stays locked in the visible position service indicator stays locked in the visible position
with the engine stopped. with the engine stopped.
Maintenance Section Maintenance Section
Cleaning Primary Filter Elements Cleaning Primary Filter Elements
Pressure air can cause personal injury. Pressure air can cause personal injury.
When using pressure air for cleaning, wear a When using pressure air for cleaning, wear a
protective face shield, protective clothing and protective face shield, protective clothing and
protective shoes. protective shoes.
The maximum air pressure must be below 205 The maximum air pressure must be below 205
kPa (30 psi) for cleaning purposes. kPa (30 psi) for cleaning purposes.
Do not clean the elements by bumping or tapping Do not clean the elements by bumping or tapping
them. them.
Inspect filter elements after cleaning. Do not use a Inspect filter elements after cleaning. Do not use a
filter with damaged pleats, ga filter with damaged pleats, gaskets or seals.
When cleaning with pressure air, use 205 kPa (30 When cleaning with pressure air, use 205 kPa (30
psi) maximum pressure to prevent filter element psi) maximum pressure to prevent filter element
damage. damage.
When cleaning with pressure water, use 280 kPa When cleaning with pressure water, use 280 kPa
(40 psi) maximum pressure to prevent filter element (40 psi) maximum pressure to prevent filter element
damage. damage.
Have spare elements on hand to use while cleaning Have spare elements on hand to
used elements. used elements.
The primary element should be replaced after 6 The primary element should be replaced after 6
months service or after cleaning no more than 3 months service or after cleaning no more than 3
times. times.
WARNING WARNING
NOTICE NOTICE
skets or seals.
use while cleaning
or 6 months section or 6 months section
10. Stop the engine and close the hood and seat 10. Stop the engine and close the hood and seat
assembly. assembly.
-167- -167-
Air-205 kPa (30 psi) Maximum Pressure Air-205 kPa (30 psi) Maximum Pressure
Direct air on the inside and outside of the element Direct air on the inside and outside of the element
along the length of the pleats. Check the element along the length of the pleats. Check the element
for any tears, rips or damage for any tears, rips or damage
Water-280kPa (40 psi) Maximum Pressure Water-280kPa (40 psi) Maximum Pressure
Direct water on the inside and outside of the Direct water on the inside and outside of the
element along the length of the pleats. Air dry it element along the length of the pleats. Air dry it
thoroughly and then examine it. thoroughly and then examine it.
Detergent Detergent
1. 1. Wash the element in warm water and mild Wash the element in warm water and mild
household detergent. household de tergent.
2. 2. Rinse the element with clean Rinse the element with clean water.
See instructions in preceding topic for cleaning See instructions in preceding topic for cleaning
with water. with water.
3. 3. Air dry it thoroughly, and then examine it. Air dry it thoroughly, and then examine it.
water.