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Operating Instructions
3-9
HP6A Manual
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 HP6A
uses high speed electronics in cooperation with an air driven ram to change the direction of travel. This
reduces the amount of Cross Hatch wipeout 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 HP6A 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 HP6A is set at the factory to operate up to XXX inches per minute of stroking speed without banging
at the top of the cylinder. The strokes per minute indicator on the HP6A 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 HP6A.
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 chart in
this manual to determine correct stroke rate and RPM for your desired cross hatch angle.
Summary of Contents for HP6A
Page 2: ......
Page 14: ...Introduction Safety Installation 1 7 HP6A Manual Single Phase Electrical Hook up...
Page 23: ...Control Definition 2 9 HP6A Manual Control Illustration...
Page 24: ...Control Definition 2 10 HP6A Manual Control Panel Illustration...
Page 38: ...Maintenance 4 3 HP6A Manual Lubrication Illustration...
Page 41: ...Maintenance 4 6 HP6A Manual Bleeding Illustration...
Page 75: ...Machine Parts 6 1 P6A Manual Chapter 6 Machine Parts Front Right Side View HP6A...
Page 76: ...Machine Parts 6 2 P6A Manual Electrical Wiring Diagram Part 1 Wiring Diagram 514 2 97K...
Page 77: ...Machine Parts 6 3 P6A Manual Electrical Wiring Diagram Part 2...
Page 78: ...Machine Parts 6 4 P6A Manual Electrical Wiring Diagram Part 3...
Page 79: ...Machine Parts 6 5 P6A Manual Air Logic Diagram...
Page 80: ...Machine Parts 6 6 P6A Manual Air System Connections...
Page 81: ...Machine Parts 6 7 P6A Manual Hydraulic Logic Diagram...
Page 82: ...Machine Parts 6 8 P6A Manual Hydraulic System Connections...
Page 83: ...Machine Parts 6 9 P6A Manual Injection Oiler...
Page 84: ...Machine Parts 6 10 P6A Manual Electrical Power Supply Enclosure...
Page 85: ...Machine Parts 6 11 P6A Manual Control Panel...
Page 86: ...Machine Parts 6 12 P6A Manual Carriage...
Page 87: ...Machine Parts 6 13 P6A Manual Front Section Rocker Arm...
Page 88: ...Machine Parts 6 14 P6A Manual Drive Pinion Assembly...
Page 89: ...Machine Parts 6 15 P6A Manual Gear Housing Section...
Page 90: ...Machine Parts 6 16 P6A Manual Carriage Float Clamp...
Page 91: ...Machine Parts 6 17 P6A Manual Stroking Control Air...
Page 92: ...Machine Parts 6 18 P6A Manual Ratchet Actuator Assembly...
Page 93: ...Machine Parts 6 19 P6A Manual Stroking Cylinder...
Page 94: ...Machine Parts 6 20 P6A Manual Upper Limit Assembly...
Page 95: ...Machine Parts 6 21 P6A Manual Hydraulic Cylinder...
Page 96: ...Machine Parts 6 22 P6A Manual Motor Safety Switch...
Page 97: ...Machine Parts 6 23 P6A Manual Pneumatic Power Supply...
Page 98: ...Machine Parts 6 24 P6A Manual Splash Tank Coolant System...
Page 99: ...Machine Parts 6 25 P6A Manual Block Hold Down Fixture Assembly...
Page 101: ...Optional Tooling 7 2 HP6A Manual Precision Hone Head...
Page 102: ...Optional Tooling 7 3 HP6A Manual Stone Holder Sleeve Sets...
Page 108: ...Optional Tooling 7 9 HP6A Manual Disassembly Instructions...
Page 109: ...Optional Tooling 7 10 HP6A Manual Junior Precision Hone Head...
Page 110: ...Optional Tooling 7 11 HP6A Manual 514 9D Extra Large HD Hone Head Assembly...
Page 111: ...Optional Tooling 7 12 HP6A Manual 514 9D Extra Large HD Hone Head Assembly Parts List...
Page 112: ...Optional Tooling 7 13 HP6A Manual 514 9 4D Sleeve Assembly...
Page 113: ...Optional Tooling 7 14 HP6A Manual 514 9 5T Stone Holder Set...
Page 114: ...Optional Tooling 7 15 HP6A Manual Auxiliary Sump Tank...
Page 115: ...Optional Tooling 7 16 HP6A Manual V 71 Fixture...
Page 116: ...Optional Tooling 7 17 HP6A Manual Stone Depth Assembly...
Page 118: ...Optional Tooling 7 19 HP6A Manual Block Hold Down Clamp Assembly...
Page 119: ...Optional Tooling 7 20 HP6A Manual 514 7B CYLINDER SLEEVE FIXTURE...
Page 120: ...Optional Tooling 7 21 HP6A Manual 514 2 39S Optional Filter System...
Page 136: ...Material Data Safety Sheets 8 16 HP6A Manual MOBIL DTE OIL LIGHT...
Page 137: ...Material Data Safety Sheets 8 17 HP6A Manual...
Page 138: ...Material Data Safety Sheets 8 18 HP6A Manual...
Page 139: ...Material Data Safety Sheets 8 19 HP6A Manual...
Page 140: ...Material Data Safety Sheets 8 20 HP6A Manual...
Page 146: ...Material Data Safety Sheets 8 26 HP6A Manual Unoba EP Grease...
Page 147: ...Material Data Safety Sheets 8 27 HP6A Manual...
Page 148: ...Material Data Safety Sheets 8 28 HP6A Manual...
Page 149: ...Material Data Safety Sheets 8 29 HP6A Manual...
Page 150: ...Material Data Safety Sheets 8 30 HP6A Manual...