BOOM VALVE SECTION (SINGLE FUNCTION BOOM) (648D GRAPPLE SKIDDER) [03I07] HYDRAULIC SYSTEM 3860 640D Log Skidder and 648D Grapple Log Skidder PC1978 in SKIDDER, LOG 640D

№	Number	Qty	Name	Options
1	21H1174	4	SCREW	MACH. 1/4" X 1"
2	12H302	4	Lock Washer	1/4"
3	T75985	1	COVER	(SUB FOR U17387)
4	T75985	1	COVER
4	[]	1		( T118894 NO LONGER AVAILABLE)
5	19H3295	1	Screw	HS, SAE 8, 3/8" X 3/4", (SUB FOR U40662)
6	U11298	1	LOCK WASHER
7	U17391	1	ROUND RETAINER	SPOOL
8	T75987	2	PLUG	STOP
9	T34974	1	SPRING	CENTERING
10	T122063	2	O-RING	(K) (SUB FOR (2) T27593)
10	T122064	2	O-RING	(K2) (SUB FOR T106371, THIS APPLICATION)
11	T75972	2	Back-Up Ring	(K1)
12	U15242	2	O-RING	(K1)
13	T77072	2	O-Ring	(K1)
14	AT141997	1	PRESSURE RELIEF VALVE
15	T75984	2	O-Ring	(K1) (K2) (SUB FOR T15710, THIS APPLICATION)
16	T78627	2	WASHER
17	U15192	3	O-Ring	(K1) (K2)
18	AT156986	1	PRESSURE RELIEF VALVE	(ANTI-CAVITATION, LOWER)
19	[]	1		(SUB AT84789)
20	[]	1		(SUB AT80420)
21	U17402	1	Washer	(K1) (K2)
22	[]	1		(SUB AT84789)
23	U17396	1	POPPET	CHECK
24	U17406	1	SPRING	CHECK
25	U17409	2	O-Ring	(K1) (K2)
26	U17393	1	FITTING
27	W19903	2	O-Ring
28	T38926	1	PLUG	NO RELIEF
29	[]	1		(SUB AT80421)
30	AT80421	2	PRESSURE RELIEF VALVE	RELIEF 18 616 KPA (186 BAR) (2700 PSI)
31	AT80420	1	PRESSURE RELIEF VALVE	(K1) BACKUP RELIEF 12 411 KPA (124 BAR) (1800 PSI)
32	19H2701	2	SCREW	1/4" X 5/8"
33	T118736	2	SEAL	(K2)
34	T118737	2	THRUST WASHER	(K2)
35	T106147	1	PLATE	(K2)
36	12H302	2	Lock Washer	1/4"
37	AT80418	1	COVER	BOOM, (SUB AT84789)
37	AT84789	1	VALVE	(SUB AT143001) (ALSO ORDER AT142904 AND AT142905)
37	AT151245	1	SPOOL VALVE	(SUB FOR AT84789 AND AT143001) (ALSO ORDER AT151244 SEAL KIT)