8
ENGLISH
These hammerdrills are professional power tools. 
DO NOT let children come into contact with the 
tool. Supervision is required when inexperienced 
operators use this tool.
 • Young children and the infirm. This appliance 
is not intended for use by young children or 
infirm persons without supervision.
  •  This product is not intended for use by persons 
(including children) suffering from diminished 
physical, sensory or mental abilities; lack of 
experience, knowledge or skills unless they are 
supervised by a person responsible for their 
safety. Children should never be left alone with 
this product.
Torque Limiting Clutch
All rotary hammerdrills are equipped with a torque 
limiting clutch that reduces the maximum torque 
reaction transmitted to the operator in case of 
jamming of a drill bit. This feature also prevents the 
gearing and electric motor from stalling. The torque 
limiting clutch has been factory-set and cannot be 
adjusted.
Electrical Safety
The electric motor has been designed for one 
voltage only. Always check that the power supply 
corresponds to the voltage on the rating plate.
 Your DEWALT tool is double insulated in 
accordance with EN 60745; therefore no 
earth wire is required.
   WARNING: 115 V units have to 
be operated via a fail-safe isolating 
transformer with an earth screen 
between the primary and secondary 
winding.
If the supply cord is damaged, it must be replaced 
by a specially prepared cord available through the 
D
EWALT service organisation.
Mains Plug Replacement
(U.K. & Ireland Only)
If a new mains plug needs to be fitted:
  •  Safely dispose of the old plug.
  •  Connect the brown lead to the live terminal in 
the plug.
  •  Connect the blue lead to the neutral terminal.
   WARNING: No connection is to be 
made to the earth terminal.
Follow the fitting instructions supplied with good 
quality plugs. Recommended fuse: 13 A.
Package Contents
The package contains:
1 Heavy-duty rotary hammerdrill 
1 Side handle 
1 Depth adjustment rod
1 Kitbox 
1 Keyless chuck (D25134, D25144)
1 Instruction manual
  •  Check for damage to the tool, parts or 
accessories which may have occurred during 
transport.
  •  Take the time to thoroughly read and 
understand this manual prior to operation.
Description (fi g. 1, 5, 8)
     WARNING: Never modify the power 
tool or any part of it. Damage or 
personal injury could result.
  a. Variable speed switch
 b. Main handle
 c. Forward/Reverse lever
 d. Mode selector
  e. Mode selector button
  f. SDS Plus tool holder
  g. Depth adjustment rod
 h. Side handle
  i. Depth rod button
 j. Sleeve
 k. Dust cover
 l. Date code
  m. Locking collar (D25134/D25144)
  n. Keyless chuck (D25134/D25144)
  o. Side handle work light (D25144/D25263)
  p. Battery door screw (D25144/D25263)
  q. On/off light button (D25144/D25263)
INTENDED USE
The D25032 heavy-duty rotary hammer has been 
designed for professional drilling, hammerdrilling, 
and screwdriving. The D25033, D25133, D25134, 
D25144 and D25263 heavy-duty rotary hammers 
have been designed for professional drilling, 
hammerdrilling, screwdriving and light chipping. 
DO NOT use under wet conditions or in presence of 
flammable liquids or gases.