Quincy QR-25 Series, Manual

Page: 11 / 31

QR 340 Quincy Compressor
50216-105, July 1999 10 3501 Wismann Lane, Quincy IL. - 62305-3116
CONNECTING ROD & PISTON GROUP 110749*
(low pressure)
Item Part
Number Qty. Number Description
1 1 40081 connecting rod assembly (N.S.S.; order 6655X)
1.1 1 110802R connecting rod (N.S.S.; order 6655X)
1.2 1 6443 connecting rod bearing (N.S.S.; order 6443SR)
1.3 2 1344 connecting rod bolt, 7/16-20 unc x 3.25
1.4 2 1319 connecting rod bolt washer
2 2 8648 retaining ring
3 1 110146 piston pin
4 1 8642 piston
5 1 2033 oil ring
6 3 9666 piston ring
7 2 6656 connecting rod insert (sold in pairs only; see maintenance parts)
8 2 124471-M08 locknut, 7/16-20 unf (@ 40 ft.-lbs.)
7 1 6656PR inserts, connecting rod (1 pair, standard size)
7 1 6656-010PR inserts, connecting rod (1 pair, .010 undersize)
1.2 1 6443SR replacement connecting rod bearing
4 1 8642-010 piston, low pressure (.010 oversize)
4 1 8642-020 piston, low pressure (.020 oversize)
1 7595A Piston Ring Set (standard)
includes piston rings & oil ring
1 4450-010 Piston Ring Set (.010 oversize, light blue color code)
includes includes piston rings & oil ring
1 4450-020 Piston Ring Set (.020 oversize, yellow color code)
includes includes piston rings & oil ring
1 8642X Piston Assembly, low pressure (standard)
includes ring set, piston pin, retaining rings, & piston
8642X010 Piston Assembly, low pressure (.010 oversize)
includes ring set, piston pin, retaining rings, & piston
8642X020 Piston Assembly, low pressure (.020 oversize)
includes ring set, piston pin, retaining rings, & piston
6655X Replacement Connecting Rod Assembly
includes connecting rod assembly, connecting rod inserts, & locknuts
Maintenance Parts
* 2 of 110749 Connecting Rod & Piston Group required per compressor
N.S.S. = Not Sold Separate
@ Indicates torque value in foot pounds (dry threads)