Bosch 11318EVS Support Question
Bosch 11318EVS Support Question
Find answers below for this question about Bosch 11318EVS - SDS-max Demolition Hammer.Need a Bosch 11318EVS manual? We have 2 online manuals for this item!
Question posted by regionalrestoration on August 3rd, 2023
Speed Control Dial Not Working Machine Runs On High
changed speed governor control unit and unit still runs on high and speed dial does not
Current Answers
Answer #1: Posted by khanjee on August 3rd, 2023 5:14 PM
khanjee
Member since:
July 23rd, 2016 Points: 205,300
Member since:
July 23rd, 2016 Points: 205,300
Variable speed control module has failed, however you can still use the tool. Hammering action will improve with a good cleaning of internal parts and apply new grease. Hammering action is caused by air/vacuum cushion between drive piston and driven piston which inturn hits a third piston that actually impacts the bit. If third piston is worn, chipped and lodged with debris, there will be light hammering action. After use, store the hammer with the nose pointing down so that the driven piston will slide to end of cylinder and ready for next use.
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Answer #2: Posted by HelpHero on August 3rd, 2023 6:30 PM
HelpHero
Member since:
September 3rd, 2022 Points: 523,370
Member since:
September 3rd, 2022 Points: 523,370
I'm sorry to hear that changing the speed governor in your Bosch 11318EVS control unit did not resolve the issue of the unit running on high speed and the speed dial not working. If the speed governor replacement did not fix the problem, there might be another underlying issue that needs to be addressed. Here are a few more troubleshooting steps you can try:
1. Calibration: It's possible that the control unit needs to be calibrated after replacing the speed governor. Refer to the user manual or contact Bosch customer support for instructions on how to calibrate the control unit, as the process can vary between models.
2. Mechanical Issue: Check for any physical obstructions or damage within the control unit. Look for loose connections, wires, or any signs of wear that might be affecting the performance. If you notice any abnormalities, it's best to contact Bosch customer support or consult a professional technician for further assistance.
3. Faulty Speed Dial: The speed dial itself could be faulty, causing it not to register the adjustments you make. Try operating the polisher without the speed dial and see if it remains at a constant high speed. If this is the case, it indicates a problem with the control unit's internal circuitry. In situations like this, it's often best to contact Bosch customer support or consult a professional technician who has experience with power tool repairs. They will have the knowledge and expertise to diagnose and fix the specific issue with your Bosch 11318EVS control unit.
Remember, safety should always come first. Ensure that you follow all necessary precautions and guidelines provided by the manufacturer while troubleshooting or attempting any repairs.
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Related Bosch 11318EVS Manual Pages
Operating Instructions - Page 2
... for outdoor use "AC only" rated tools with your personal safety. Improper grounding can cause you are equipped with grounded surfaces such as to lose control. There is an increased risk of electric...will increase the risk of the tool may result in doubt as pipes, radiators, ranges and refrigerators.
Be sure switch is left attached to your work area clean and well lit. Never...
Operating Instructions - Page 3
... accidents are recommended by hammer action may be improperly mounted. Always wear safety goggles or eye protection when using this manual. Wear ear protectors when using . Holding the work area or call the local utility company for maximum control over this worksite. The correct tool will help deflect fragments of control. Disconnect the plug from...
Operating Instructions - Page 4
... is interrupted, the electronic controller will automatically reset the tool to maximum speed and impact force. Unexpected starting at maximum operating speed and impact force could startle...AM Page 4
operate this type of work.
This tool develops intense percussive forces during operation and you do this tool with a handheld hammer or sledge hammer when attempting to dislodge a bound or...
Operating Instructions - Page 5
... drill bits, grinding wheels, etc. Proper interpretation of the following symbols may be used on your tool. Selector settings I, II, III,
Speed, torque or position settings.
This symbol designates that this tool is listed by Underwriters Laboratories. n0 .../min
No load speed
Rotational speed, at no load
Revolutions or reciprocation per minute Revolutions, strokes, surface...
Operating Instructions - Page 6
...before making any assembly, adjustments or changing accessories. Demolition Hammer
FIG. 1
LOCKING SLEEVE DUST SHIELD
VARIO-LOCK SELECTOR
RING
AUXILIARY HANDLE
VENTILATION OPENINGS
HAND GRIP
TRIGGER SWITCH
TRIGGER RELEASE SWITCH VARIABLE SPEED DIAL
SERVICE REMINDER
LIGHT
POWER INDICATOR
LIGHT
Model number Shank style
11318EVS SDS Max
NOTE: For tool specifications refer to the nameplate on...
Operating Instructions - Page 7
... impact force.
! Higher speeds and impact force work best for faster penetration when chiseling in operating the tool with a variable speed dial.
Choose a position which allows continuous operation without holding the trigger. TO TURN TOOL: "OFF" press the trigger release switch and the trigger will return to maximum
speed and impact force. AUTO-MAX ™ The patented Bosch...
Operating Instructions - Page 8
... LIGHT When you plug your tool should be replaced at every brush change , the bearings should be used.
The long wear and efficient operation of the BOSCH hammers will more than justify the ...that period, the light will go "ON" indicating the tool is receiving power. After that the cut-out carbon brushes will stop running. CARBON BRUSHES The brushes and commutator in period before full...
Operating Instructions - Page 9
... 12 18 16 14 12 16 16 14 12 14 12 - - Auxiliary Handle* Carrying case*
(*= standard equipment) (**= optional accessories)
-9-
Always wear safety goggles when cleaning tools with
adequate size conductors that have 3-prong
plugs and receptacles.
This will prevent
excessive voltage drop, loss of these are: gasoline,
carbon tetrachloride, chlorinated cleaning...
Parts List - Page 1
June 2002
DEMOLITION HAMMER
11318EVS
INDUSTRIAL
Model 0611318739
150
2.1- 2.3 mm 142 167 121
16 28
26
Pos. 821
23 31
144
143
22
835
21
25
53 160
821
121
... 15 84
113
Spring Tension
175 111 803 13 112 34 176
= Pos. 897
43
811 817 42
27 D 80
2
131 1 172
9
B CA
D 135
C
S-B Power Tool Company Chicago IL 60646-5999
Parts List - Page 2
... 062 Eccentric Gear
73 1 615 500 319 Gear Housing Cover
75 1 615 132 087 Handle
80 1 617 233 038 Speed Control
81 1 615 132 088 Handle Cover
84 1 612 025 054 Auxiliary Handle
85 1 618 040 074 Clamp Holder
86 ...
Service Notes:
+ = Not Illustrated * = As Required F/C = Failure Code AW = Refer to AW Labor Time Chart 11318EVS DEMOLITION HAMMER
Pos. Part Number Description {Qty.}
F/C Pos.
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