Cylinder (51721029)
4
A
A
9 5
15
17
15
7
8
6 314
11
2
18
18
SECTION A-A
SCALE 1/2
NOTES (IF TIED TO DRAWING, SEE REFERENCE NUMBER IN
î
):
1 REPLACE ALL COMPONENTS OF THE SEAL KIT WHENEVER THE CYLINDER IS DISASSEMBLED. THIS
WILL REDUCE FUTURE DOWNTIME.
2 APPLY REGULAR GRADE ANTI-SEIZE AND LUBRICATING COMPOUND TO THREADS ON CYLINDER
HEAD ONLY. KEEP AWAY FROM ALL SEALS.
3 APPLY "LUBRIPLATE" NO. 630-2 MEDIUM HEAVY, MULTI-PURPOSE LUBRICANT, TO ALL PISTON, HEAD
GLAND, AND HOLDING VALVE SEALS, NYLON LOCK RING, CAST IRON PISTON RINGS, AND ROD
STINGER THREADS.
4 CYLINDER CLOSED 121.5"; OPEN 193.6"; STROKE 72".
5 ITEM #8, STOP TUBE, REPLACES 6A025017 WAFER LOCK. USE STOP TUBE INSTEAD OF WAFER LOCK
WHEN RESEALING CYLINDER.
6 PRESS LOCKING PIN (ITEM #4) INTO #15 HOLE DRILLED 0.188â DEEP.
7 TORQUE PISTON TO 400-430 FT-LB, HEAD TO 250 FT-LB, LOCKNUT TO 12 FT-LB, AND CAP SCREW TO
16 FT-LB.
SEAL KIT - IMT 3.75B X 1.75R 1.13 STGR
(INCL: 4, 8, 10-17)
CASE ASM- 2.50B X 122.75 LG
ROD ASM- 1.75 OD X 120.88L 1.13 STGR
PIN - LOCK TUBE 0.19 OD X 0.065 WALL
PISTON- 2.50B X 1.75R 1.13STGR
STOP TUBE- 2.38OD X 1.81ID X 34.16 LG
COLLAR-LOCK 1-1/8-12 X 1.875 X 1/2
O RING 1.12X 1.38X .12 70
O RING 2.25X 2.50X .12 70
BACKUP RING-2.25 ID X 2.50 OD
ROD WIPER - TYPE D 1.75 ROD
WEAR RING-PISTON 2.50 ODX .50W
WEAR RING-ROD 1.75 ID X 0.50 W
PISTON SEAL-DYNAMIC 2.50in CP
STOP TUBE-1.75 ROD X 3.00 LONG