Stanley Fatmax FMER524, Manual

ENGLISH

(Original instructions)

7

Setting the drilling depth (Fig A)

The depth stop is a convenient feature to ensure uniformity in 

drilling  depth.  Loosen  the  side  handle  to  adjust  the  depth  

gauge according to the required depth. After that, tighten the 

side handle.

•  Slacken the side handle (9) by turning the grip 

counter-clockwise.

•  Set the depth stop (8) to the required position. The 

maximum drilling depth is equal to the distance between 

the tip of the drill bit and the front end of the depth stop.

•  Tighten the side handle by turning the grip clockwise.
Switching on and off (Fig A)

WARNING! Before plugging in to the power source, make 

sure the variable speed switch can be flipped freely, and can 

return to its original position once released. Please check 

switch lock on position before turn on and make sure switch 

lock off before plugging in to the power source.

•  To switch the tool on, press the variable speed switch (3). 

The tool speed depends on how far you press the switch.

•  As a general rule, use low speeds for large diameter drill 

bits and high speeds for smaller diameter drill bits.

•  For continuous operation, press the lock-on button (2) and 

release the variable speed switch.

•  To switch the tool off, release the variable speed switch. To 

switch the tool off when in continuous operation, press the 

variable speed switch once more and release it.

Warning! When the user leaves, or pick up, 

transport, manner and position the tool, make sure 

that tool is switched off and unplugged.

Warning: Never use standard chucks in the 

hammer-drilling mode

Selecting the operating mode (Fig B)

The tool can be used in the following operating modes:

Rotary drilling: for screw driving and for drilling 

into steel, wood and plastics

Hammer drilling: for concrete and masonry drilling 

operations. Bit rotation: non-working position used 

only to rotate a flat chisel into the desired position

Hammering only: for light chipping and chiselling. 

In this mode the tool can also be used as a lever to 

free a jammed drill bit.

1.  To select the operating mode, press the mode selector 

button and rotate the mode selector switch (5) until it points 

to the symbol of the required mode.

2.  Release the mode selector button and check that the mode 

selector switch is locked in place.

Warning! Do not select the operating mode when 

the tool is running.

Proper hand position (Fig A, Fig D)

Warning! To reduce the risk of serious personal 

injury, ALWAYS use proper hand position as shown.

Warning! To reduce the risk of serious personal 

injury,  ALWAYS  hold  securely  in  anticipation  of  a 

sudden reaction.

Proper hand position requires one hand on the side handle 

(9), with the other hand on the main handle (1).
Rotary drilling (Fig B, Fig D, Fig C1/C2)

•  For drilling in steel, wood and plastics, or for screw driving 

set the operating mode selector (5) to the              position.

•  Fit the drill chuck assembly. Depending on your tool, follow 

either of the following instructions:

•  Insert the appropriate bits. When driving slotted head 

screws always use bits with a finder sleeve.

•  For  drilling  in  steel,  wood  and  plastics,  set  the  forward/ 

reverse lever(4) to the forward position(Fig C1). When use 

for screw driver function, tighten screws set the forward/re-

verse lever (4) to the forward position(Fig C1) and loose 

screws  set  the  forward/reverse  lever  (4)  to  the  reverse 

position(Fig C2).

Warning! Never use drill chucks in the hammer 

drilling mode.

Hammer drilling (Fig B)

•  For hammer drilling in masonry and concrete, set the 

operating mode selector (5) to the             position.

•  The drill bit has to be placed accurately onto the drill hole 

position. After that, pull the switch for optimal effects. Make 

sure the tool is in the correct position to prevent the drill 

from deviating from the hole.

•  When the drill hole is clogged with debris or fine powder, 

please don’t exert any more pressure. Tool should be put in 

free-running state before removing part of the drill bit from 

the hole. If repeated a few times, the blockage in the hole 

would be cleared, and normal drilling can resume.

Warning! When the drill bit hits the steel rebar in 

the cement, the tool may recoil dangerously. Please 

hold the tool tightly in a balanced and stable 

position at all times to prevent it from recoiling 

dangerously.

Safety clutch

All rotary hammer are equipped with a safety 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.
Overload coupling device

If the drill bit is caught or hooked, the driving force transmitted  

to the drill shaft will be cut off. This would generate a strong 

recoil, so it would be necessary to hold the tool tightly with 

both hands to remain in a stable position.