Mechanical Fundamentals - Revision history

Mirco Smerecnik at 10:46, 7 September 2017

2017-09-07T10:46:44Z

Mirco Smerecnik: /* Gearbox and fly masses functions */

2017-08-24T11:42:50Z

‎Gearbox and fly masses functions

Mirco Smerecnik: /* Gearbox and fly masses functions */

2017-08-24T11:39:21Z

‎Gearbox and fly masses functions

Mirco Smerecnik: /* Removal and mounting instructions */

2017-08-24T11:37:50Z

‎Removal and mounting instructions

Mirco Smerecnik: /* Gearbox and fly masses functions */

2017-08-24T11:34:06Z

‎Gearbox and fly masses functions

Shawn Imming at 11:18, 7 April 2017

2017-04-07T11:18:05Z

Shawn Imming at 11:17, 7 April 2017

2017-04-07T11:17:40Z

Shawn Imming: /* Removing cranks */

2017-04-06T11:37:37Z

‎Removing cranks

Shawn Imming: /* Removing cranks */

2017-04-06T11:36:33Z

‎Removing cranks

Shawn Imming at 11:31, 6 April 2017

2017-04-06T11:31:49Z

@@ Line 3: / Line 3: @@
 <gallery>
   File:Seatpost-designations.jpg|Designations seatpost and rulers
-  File:Handlebar-designations.jpg|Designations handlebars and rulers
+  File:Handlebar-designations-1200px.jpg|Designations handlebars and rulers
   File:Ergo-Rohloff-01.jpg|Rohloff Gear Box
   File:Verlängerbare_Kurbel_1.jpg|Prolongable Crank 1
@@ Line 20: / Line 20: @@
 <gallery>
   File:Seatpost-designations.jpg|Designations seatpost and rulers
-  File:Handlebar-designations.jpg|Designations handlebars and rulers
+  File:Handlebar-designations-1200px.jpg|Designations handlebars and rulers
   File:SRM-Ergometer-02.jpg|PM Science incl. the Prolongable Crank (01)
   File:Verlängerbare_Kurbel_1.jpg|Prolongable Crank (02)

@@ Line 113: / Line 113: @@
 The kinetic energy of the cyclist is: E = v² x m/2
-Please keep in mind that in a power-orientated test the change of regulation (hunting) increases linear to the fly mass-range in the single power steps. If one likes to have a change of regulation as little as it can be, it is best to ride in 3rd or 4th gear. It is also helpful to change to a smaller gear, when the no load-friction of the Ergometer in the 3rd or 4th gear is higher than the power at the beginning in an incremental stress test. In the 4th gear the no load-friction is about 80 watts with a cadence of 90, in the 1st gear it is about 50 watts. Therefore it is not possible to regulate less than 50 watts.
+Please keep in mind that in a power-orientated test the change of regulation (hunting) increases linear to the fly mass-range in the single power steps. If one likes to have a change of regulation as little as it can be, it is best to ride in 3rd or 4th gear. It is also helpful to change to a smaller gear, when the no load-friction of the Ergometer in the 3rd or 4th gear is higher than the power at the beginning in an incremental stress test. In the 4th gear the no load-friction is about 80 watts with a cadence of 90, in the 1st gear it is about 30-50 watts. Therefore it is not possible to regulate less than 30-50 watts.
 But please consider that the Rohloff gear box for regular performance diagnostics and step testing should be used in gear 8 or 9 ([[Media:Ergo-Rohloff-01.jpg|s. picture]]).

@@ Line 119: / Line 119: @@
 The small fly mass weights 4.6 kg and the big fly mass weights 9.1 kg.<br>
-==== Notice ====
+=== Notice ===
-The default configuration for the most common Ergometer tests is installing the LARGE fly mass inside the gearbox on its own!
+The default configuration for the most common Ergometer tests is installing the LARGE fly mass inside the gearbox only.
-Please remove the SMALL fly mass as described below! For more information on kinetic energy simulation, fly masses and gear ratio of the Rohloff hub see the manual or visit our webpage at www.srm.de
+Please remove the SMALL fly mass as described below.
 === Removal and mounting instructions ===

@@ Line 123: / Line 123: @@
 Please remove the SMALL fly mass as described below! For more information on kinetic energy simulation, fly masses and gear ratio of the Rohloff hub see the manual or visit our webpage at www.srm.de
-==== Removal and mounting instructions ====
+=== Removal and mounting instructions ===
+The fly masses can easily be changed after taking off the left ergometer lid by loosening the brass-coloured counter-nut. Hand-tight fastening is enough. Always disconnect thee power supply from the Ergometer when opening the side covers! Never operate the Ergometer without the side covers! Before removing side covers insure fly masses have stopped spinning completely and use care when handling the fly masses to prevent injuries or bruises – both are very heavy!
-Always disconnect thee power supply from the Ergometer when opening the side covers! Never operate the Ergometer without the side covers! Before removing side covers insure fly masses have stopped spinning completely and use care when handling the fly masses to prevent injuries or bruises – both are very heavy!
+[[File:Practice SRM Ergoemter - Flying masses.jpg|thumb|Flying masses]]
 :*To remove/mount a fly mass you need the following tools: One or two aluminum spacer, Torx screwdriver an nut wrench (Fig.1)
 :*Open the cap of the Ergometer by removing the seven Torx screws (marked red) with the Torx T30 wrench (Fig.2)
@@ Line 136: / Line 136: @@
 :*Make sure the fly mass sits firmly, has no play on the axle and can rotate freely! Remove all tools inside the gearbox! Reinstall thee :cover with the seven Torx head screws. Do not over tighten!<br>
 See also: [[SRM-Online represented practically#Fly masses|Fly masses]]

@@ Line 118: / Line 118: @@
 The fly masses can easily be changed after taking off the left ergometer lid by loosening the brass-coloured counter-nut. Hand-tight fastening is enough.
 The small fly mass weights 4.6 kg and the big fly mass weights 9.1 kg.<br>
 See also: [[SRM-Online represented practically#Fly masses|Fly masses]]

@@ Line 38: / Line 38: @@
 :From time to time it is necessary to grease the steel elements of the crank to protect them from sweat and to maintain the free movement.
-=== Removing sadle ===
+=== Removing saddle ===
 The SRM ergometer includes a standard saddle. A lot of professional cyclists have there own specialized saddle. So it is important to be able to remove the saddle. The following images show how it is done.

@@ Line 26: / Line 26: @@
 </gallery>
+=== Adjustable bike parts ===
 * '''Horizontal Positioning of the saddle'''
 : The ruler which is integrated in the seat stay gives you the distance between the center of the bottom bracket and the front of the saddle. The distance in cm can be read from the left hand side of the seat stay.
@@ Line 37: / Line 37: @@
 :After adjusting the right crank arm length, please tighten the Allen screws again with a maximal torque of 10 Nm so that they won’t come loose while you ride the Ergometer. Make also sure that the screws are situated with a distance of a 2.5 mm. This can be determined when the fixing spring (situated between the Allen screws) locks into the holes of the steel element of the crank. Please do never remove or adjust the fixing spring.
 :From time to time it is necessary to grease the steel elements of the crank to protect them from sweat and to maintain the free movement.
 === Removing cranks ===

@@ Line 69: / Line 69: @@
   File:8 Crank puller.jpg|8 Removing crank arm
   File:9.jpg|9 Crank arm removed
-  File:10.jpg|10 Crank arm back in position
+  File:10.jpg|10 Crank arm back in position with components 3+4
   File:11 Allen key.jpg|11 Fix screw
   File:12.jpg|12 Components 1+2 back in place

@@ Line 53: / Line 53: @@
 *7. Fasten the crank puller.
 *8. Loosen and finally remove the crank arm.
-*9. Overview of the octagram to which the crank arm is attached.
+*9. Overview of the octagram to which the crank arm is attached with the crank arm removed.
 *10. Place the crank arm back into position and putt components 3+4 back into the hole.
 *11. Fix the screw with the Allen key.
@@ Line 59: / Line 59: @@
 <gallery>
-  File:1 Overview.jpg
+  File:1 Overview.jpg|1 Overview
-  File:1 Start.jpg
+  File:1 Start.jpg|1 Start
-  File:2 Allen key.jpg
+  File:2 Allen key.jpg|2 Unscrew with Allen key
-  File:3.jpg
+  File:3.jpg|3 Component 1 removed
-  File:4.jpg
+  File:4.jpg|4 Component 2 removed
-  File:5.jpg
+  File:5.jpg|5 Components 3+4 removed
-  File:6.jpg
+  File:6.jpg|6 Component 5 crank puller
-  File:7 Crank puller.jpg
+  File:7 Crank puller.jpg|7 Fasten crank puller
-  File:8 Crank puller.jpg
+  File:8 Crank puller.jpg|8 Removing crank arm
-  File:9.jpg
+  File:9.jpg|9 Crank arm removed
-  File:10.jpg
+  File:10.jpg|10 Crank arm back in position
-  File:11 Allen key.jpg
+  File:11 Allen key.jpg|11 Fix screw
-  File:12.jpg
+  File:12.jpg|12 Components 1+2 back in place
 </gallery>
 == Gearbox and fly masses functions ==

@@ Line 39: / Line 39: @@
 === Removing cranks ===
-By following the next steps it will be able to remove the cranks of the ergometer.
+[[File:Screw with its components 1.jpg|thumb|Screw with its components]]
+[[File:Screw with its components 2.jpg|thumb|Screw with its components]]
-*1
+[[File:Crank puller.jpg|thumb|Crank puller]]
-*2
-*3
-*4
 == Gearbox and fly masses functions ==