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C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 37
C-30HD — CONCRETE DELIVERY
C-30HD CONCRETE PUMP
CONCRETE DELIVERY
NO. PART NO. PART NAME QTY. REMARKS
281 EM23837 REDUCER, 3X2 .......................................................... 1 ....................PRIOR TO JULY 1, 1990
281 EM28004-DD REDUCER, 3X2 .......................................................... 1 ....................AFTER JULY 1, 1990
282 EM963180 BOLT, 3/4-10X5 .......................................................... 2 .................... REPLACES EM131
283 EM14809 EXHAUST GATE ......................................................... 1 .................... PRIOR TO JULY 1, 1990
283 EM14850 EXHAUST GATE ......................................................... 1 ....................AFTER JULY 1, 1990
284 EM968446 NUT, HEX 3/4-10 ........................................................ 2 .................... REPLACES EM407
285 BALL INSERT ............................................................. 1 ....................SEE NOTE
286 EM18801 “O” RING 5
287 EM14818 STEEL BALL, 4” 1
288 EM968266 NUT, JAM 3/4-16 ........................................................ 6 ..................... REPLACES EM421
289 EM618 WASHER, SPECIAL 3/4 6
290 EM18409 “O” RING 6
291 EM14801 PRIMARY VALVE 1
292 EM136 STUD, 3/4-16X8 3
293 EM137 T-BOLT, 3/4-10X14 2
294 EM14817 VALVE SEAT 1
295 EM14810 JOLTER SPRING 1
296 EM14845 CLAMP ARM 1
297 EM23839 3” COUPLING “B” VIC ................................................ 1 .................... PRIOR TO JULY 1, 1990
297 EM28904 3" COUPLING "B" HD ................................................ 1 .................... AFTER JULY 1, 1990
298 EM23840 3” COUPLING S/J VIC ................................................ 1 ....................PRIOR TO JULY 1, 1990
298 EM28904 3" COUPLING "B" HD ................................................ 1 ..................... AFTER JULY 1, 1990
299 EM23838 ELBOW, 3”-90° ........................................................... 1 ....................PRIOR TO JULY 1, 1990
299 EM23946 ELBOW. 3"-90° ........................................................... 1 ....................AFTER JULY 1, 1990
300 EM135 BOLT, 1-1/4-12X6 1
301 EM14819A MANIFOLD ASSY 1
302 EM968446 NUT, HEX 3/4-10 ........................................................ 2 .................... REPLACES EM407
303 EM619 WASHER, WILLIAM 3/4 2
304 EM18804 STEEL BALL, 4 1/2” 1
305 BALL INSERT ............................................................. 1 ....................SEE NOTES
306 EM160 BOLT, 3/8-16X3/4 1
307 EM451 NUT, LOCK 1-1/4-12 1
Not Shown in diagram: 4" Urethane Ball (P/N EM26817); 4" Seat (P/N EM26816)
Notes on item #285 — Machines prior to July 1, 1990
use P/N 18803 Ball Insert; On machines after July 1,
1990, P/N 18803 was replaced by the Duraseat P/N
14843. This new seat is more durable and can be used
on older units.
Notes on item #305 — Machines prior to July 1, 1990
use P/N 18806 insert (used in conjunction with 14817
seat); On machines after July 1, 1990, these parts are
replaced by 14842 Duraseat.