MAKINEX DPW-4000, Operator'S Manual, Page: 29 / 58

Page 29 of 56
Pressure Washer Maintenance
Clean Debris
Daily or before use, clean accumulated debris from cleaning system. Keep the unit
clean at all times. Keep area around and behind muffler free from any combustible
debris. Inspect cooling air slots and openings on the pressure washer. These
openings must be kept clean and unobstructed.
Cleaning system parts should be kept clean to reduce the risk of overheating and
ignition of accumulated debris.

Use a damp cloth to wipe exterior surfaces clean.

Use a soft bristle brush to loosen caked on dirt, oil, etc.

Use a vacuum cleaner to pick up loose dirt and debris.
Check and Clean Inlet Filter
Examine the inlet water filter on the pump after every use and clean it if the screen is
clogged or replace immediately if screen is damaged.
Check High Pressure Hose
The high pressure hose can develop leaks from wear, kinking, or abuse. Inspect the
hose each time before using it. Check for cuts, leaks, abrasions or bulging of cover,
damage or movement of couplings. If any of these conditions exist, replace the hose
immediately.
WARNING

The high pressure stream of water that this equipment
produces can cut through skin and its underlying tissues,
leading to serious injury and possible amputation.

NEVER repair high pressure hose. Replace it.

Replacement hose rating MUST exceed maximum
pressure rating of unit.
NOTE:
IMPROPER treatment of pressure washer can damage it and shorten its
life. DO NOT spray any objects through cooling slots.