Gardner Denver HD-2250, Operating And Service Manual

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Page 33
SECTION 6
REBUILDING DATA, RUNNING CLEARANCES AND TORQUES
REBUILDING DATA FOR HD-2250 PUMP (in.)
PUMP STROKE 8 Inches
Crankshaft Throw Diameter............................................... 7.251” / 7.249”
Crankshaft Shaft Diameter at Main Bearing ...................... 16.002” / 16.001”
Distance Between Main Bearing Centers........................... 12.00”
Bore in Frame for Main Bearings....................................... 19.750” / 19.752”
Bore in Frame for Pinion Bearing Housing ....................... 11.001” / 11.003”
Connecting Rod Centers ................................................... 12.0
0
Connecting Rod Bearing Bore (Assembled in
Bearing Housing) ................................................. 7.254” / 7.259”
Crosshead Guide Bore ...................................................... 9.877” / 9.880”
Crosshead OD ................................................................. 9.860” / 9.855”
Wristpin Dia………………………………………………………2.500” / 2.499”
Wristpin Bushing Bore………………………………………… 2.503” / 2.505”
RECOMMENDED RUNNING CLEARANCES – ACTUAL
New (in.) Maximum Allowable
Wear Limit (in.)
Connecting Rod Bearing to Crankshaft.............................. .0055” / .0105” .............. 018”
Crosshead Knuckle to Thrust Bearing…………………………0005” / .0020”………….006”
Wrist Pin to Bearing……………………………………………..003” / .006” …………….020”
Main Bearing Installed Clearance*..................................... .002” / .004”.................. .019”
Main Bearing Bench Clearance*........................................ .011” /. 013”.................. .028” / .033”
Crosshead to Guide* ......................................................... .017” / 025”................... .045”
Crankshaft Endplay ........................................................... .005/.015 ...................... .030”
Pinion Float prior to gear installation………………………… .080” to .200”
* Feeler gauge clearances .001 inch less than actual values.