DeWalt D25900K Service Manual

Page 62 of 63
SECTION FOUR.
Routine Servicing
When the unit comes in to Service for changing the brushes, typically after 250 to
300 hrs.
The following items should be carried out.
- Replace O-Ring 487213-00 (49) on Piston.
- Replace O-Ring 323711-44 (79) on Main Housing.
- Replace O-Ring 487296-00 (77) on Ram.
- Replace O-Ring 487297-00 (73) inside Cylinder.
- Replace O-Ring 487299-00 (109) inside Spindle
- Replace Seal 487243-00 (108) inside Spindle.
- Lubricate all the above and replace the Grease 578970-02 140g (800) in the
Gearbox and Crankcase.
- Replace Washer 487241-00 (89) & Snap Ring 487205-00 (88).
- Replace rubber - nose 487238-00 (87)
- Replace Brushes 487340-00 230v or 487340-01 115v.

DeWalt D25900K Specifications

General

Input power	1500 W
Power source	AC
AC input voltage	230 V
AC input frequency	50 Hz
Impact rate	2040 bpm
Impact energy (max)	25 J
Chuck type	SDS Max

Weight and Dimensions

Weight	9800 g