Yale 11353395D manual 4. Lower Block Assembly

		Figure 9-4. Lower Block Assembly.
Ref.	Part	“B” Frame: Lower Block Components for Figure 9-4.
No.	Number	Description
	GHB-400Y	Lower Block Assembly (Includes Ref. Nos. 1-17)
1	GHB-401	Lower Block Frame – Hook Beam
2	GHB-402	Hook
3	GHB-403	Thrust Bearing
4	GHB-404	Castle Nut
5	GHB-405	Spring Pin

6GHB-406Y Sheave Covers - Yellow

7GHB-407 Flat Head Socket Cap Screws (1/4-20 x 1/2)

8	GHB-408	Sheave Pin
9	GHB-409	Sheaves
10	GHB-410	Ball Bearings

11GHB-411 Internal Retaining Rings

12GHB-412 External Retaining Rings

13GHB-413 Socket Head Cap Screws (1/4-20 x 2 3/4 Long)

14GHB-414 Hi-Collar Lockwashers (1/4)

15GHB-415 Self-Locking Nuts (1/4-20)

16GHB-416 Capacity Plates

17GHB-417 Hex Washer Head Self-Tapping Screws (5/16-18 x 1 1/2)

“C” Frame: Lower Block Components for Figure 9-4.

Qty.

Req’d

1

1

1

1

1

1

4

4

1

2

2

2

2

8

8

8

2

4

Ref.	Part		Qty.
No.	Number	Description	Req’d
	GHC-400Y10	10t Lower Block Assembly (Includes Ref. Nos. 1-17)	1
	GHC-400Y7.5	7 1/2t Lower Block Assembly (Includes Ref. Nos. 1-17)	1
1	GHC-401	Lower Block Frame – Hook Beam	1
2	GHC-402	Hook	1
3	GHC-403	Thrust Bearing	1
4	GHC-404	Castle Nut	1
5	GHC-405	Spring Pin	1
6	GHC-406Y	Sheave Covers	4

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