
Section 5 Operating Instructions
HP7A Manual
www.rottlermfg.com
5-9
Cross Hatch Angle and Washout
The ideal situation would be for a hone to change the direction it is traveling instantaneously. If this was
possible the angle of the cross hatch would stay consistent through the entire cylinder. The Rottler HP7A
uses high speed electronics in cooperation with an air driven ram to change the direction of travel. This
reduces the amount of Cross Hatch wipe out considerably from a crank driven rocker arm. As a rocker
arm changes direction, the rate of travel slows but the rotation speed of the hone head stays consistent.
This is the cause of washout at the top and bottom of cylinders. Below are examples of ideal cross hatch,
Rottler HP7A cross hatch and a crank driven cross hatch.
It is possible to mistake the slight washout of the cross hatch at the top of the cylinder as the hone head
rotating after it has come to a stop at the top of the cylinder. It is important to understand the difference in
washout and over rotation.
Stroking Speed
The HP7A is set at the factory to operate up to 250 inches per minute of stroking speed without banging
at the top of the cylinder. The strokes per minute indicator on the HP7A cannot be used to judge the
Inches Per Minute the hone head is traveling at. Stroking at 60 SPM in a 6 inch cylinder is allot different
than stroking at 60 SPM in a 10 inch bore. The following will show how to correctly calculate Inches Per
Minute with the HP7A.
Stroke Length = Length of Bore + Top and Bottom Overhang of stones – Length of stones.
Inches Per Minute = Stroke Length X Strokes per minute
Example:
60 SPM in 6 inch bore.
Stroke Length = Length of Bore (6) + Top and Bottom Overhang (.5 Top and .5 Bottom) – Length of
Stones (4) = 3. The actual stroke of the rocker arm is 3 inches.
Inches Per Minute = Length of Stroke (3) X Strokes Per Minute (60) = 180 IPM
Vs.
60 SPM in 10 inch bore.
Stroke Length = Length of Bore (10) + Top and Bottom Overhang (.5 Top and .5 Bottom) – Length of
Stones (4) = 7. The actual stroke of the rocker arm is 7 inches.
Inches Per Minute = Length of Stroke (7) X Strokes Per Minute (60) = 420 IPM
As shown above, there is quite a difference in the speed the hone head is traveling. The excessive speed
will cause the machine to “bang” at the top of the cylinder. The correct way to solve this is to lower the
stroking rate and increase the RPM of the Hone head. Use the cross hatch angel calculation screen on
the control display to determine correct stroke rate and RPM for your desired cross hatch angle.
Содержание HP 7A
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Страница 8: ...Section 1 Introduction HP7A Manual www rottlermfg com 1 4 ...
Страница 18: ...Section 2 Installation HP7A Manual www rottlermfg com 2 9 ...
Страница 36: ...Section 4 Control Definitions HP7A Manual www rottlermfg com 4 11 ...
Страница 66: ...Section 5 Operating Instructions HP7A Manual www rottlermfg com 5 28 ...
Страница 88: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 20 Remove upper housing assembly ...
Страница 90: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 22 Remove ratchet pawl assembly from gear cage ...
Страница 92: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 24 Remove ring gear from cage assembly ...
Страница 95: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 27 Remove fasteners and pointer from cage housing ...
Страница 96: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 28 Remove oil seal from ratchet gear assembly ...
Страница 99: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 31 Remove Belleville washer from upper housing ...
Страница 101: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 33 Remove roll pin from sun gear ...
Страница 105: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 37 Remove lock nut and lock washer from drive shaft assembly ...
Страница 107: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 39 Remove drive key from drive shaft ...
Страница 108: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 40 Press drive shaft assembly from lower housing assembly ...
Страница 110: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 42 Press bearing out of lower housing ...
Страница 111: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 43 Remove planet gear bushing from lower housing ...
Страница 116: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 48 Remove shoulder bolt from feed pawl Rotate feed pawl outward ...
Страница 121: ...Section 6 Maintenance HP7A Manual www rottlermfg com 6 53 Pull out pawl shaft and remove O rings from shaft and housing ...
Страница 153: ...Section 7 Troubleshooting HP7A Manual www rottlermfg com 7 6 Operational Flow Chart ...
Страница 154: ...Section 7 Troubleshooting HP7A Manual www rottlermfg com 7 7 I O Board LED Reference Map ...
Страница 157: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 1 Machine Parts Air Logic Diagram ...
Страница 158: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 2 Air System Connections ...
Страница 159: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 3 Stroke Cylinder ...
Страница 160: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 4 Hydraulic Logic Diagram ...
Страница 161: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 5 Hydraulic System Connections ...
Страница 162: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 6 Hydraulic Cylinder Fittings ...
Страница 163: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 7 Hydraulic Cylinder ...
Страница 164: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 8 Stroke Control Valve Components Hydraulic Bypass Components ...
Страница 165: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 9 Hydraulic Reservoir Components ...
Страница 166: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 10 Injection Oiler ...
Страница 167: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 11 Front Section Rocker Arm ...
Страница 168: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 12 Drive Pinion Assembly ...
Страница 169: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 13 Gear Housing Section ...
Страница 170: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 14 Upper Housing Parts ...
Страница 171: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 15 Lower Housing Parts ...
Страница 172: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 16 Cage Housing Parts ...
Страница 173: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 17 Ratchet Actuator Assembly ...
Страница 174: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 18 Drive Adjuster Assembly Complete Assembly 514 6 40A ...
Страница 175: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 19 Planet Gear Assembly Complete Assembly 514 6 33A ...
Страница 176: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 20 Feed Out Detent Assembly Parts ...
Страница 177: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 21 Drive Tube Assembly Parts ...
Страница 179: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 23 Stroking Control Air ...
Страница 180: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 24 Stroking Cylinder Assembly ...
Страница 181: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 25 Hydraulic Cylinder Mount Components ...
Страница 182: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 26 PARK Safety Switch ...
Страница 183: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 27 Pneumatic Supply ...
Страница 184: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 28 Hone Tank ...
Страница 186: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 30 Carriage and Rocker Arm ...
Страница 187: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 31 Air Lock Assembly ...
Страница 188: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 32 Rocker Arm Controls ...
Страница 189: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 33 Control Panel Assembly ...
Страница 190: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 34 Electrical Enclosure Assembly ...
Страница 191: ...Section 8 Machine Parts HP7A Manual www rottlermfg com 8 35 Electrical Enclosure Components ...
Страница 194: ...Section 9 Options HP7A Manual www rottlermfg com 9 2 ...