National Crane 600H, Руководство по обслуживанию

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BOOM 600H SERVICE MANUAL
4-30
08-19-2022 Control # 092-13
57. Remove bottom wear pad assembly.
58. Remove cables (96, Figure 4-23) from grooves in front
lower inside section 3.
59. Slide sections 5/4 from section 3.
60. Remove and disassemble top rear wear pads (10), cam
plates (32) and plate brackets (9).
61. Remove lower wear pads (23)/cable retainers from
outside rear of section 4.
62. Remove cable retainers (26 LH and 27 RH) to free
cables.
63. Remove rear sheaves (56) and pins (57).
64. Remove cables (97) from rear anchor slots.
65. Feed cables (96) through cutouts in rear of section 4.
66. Remove top wear plates (2, Figure 4-24).
67. Remove cable retainer bracket (1).
68. Remove retainer (4)/spacer plate (5).
69. Remove top retainer plate from between sections.
70. Remove bottom inner plate (62, Figure 4-23) wear pad
(21) assembly.
71. Remove top and bottom side wear pads (15 LH and 16
RH) and shims. Tie the wear pads and shims together
for assembly.
72. Remove sheave (48) and end plate pin (8) with shims
(49). Tie sheave and shims together for assembly.
73. Remove cables (94) from around sheave (48).
74. Slide section 5 from section 4.
75. Remove wear pad (25) at rear outside of section 5.
76. Remove cable (97) from lower rear anchor point.
77. Remove cable (94) from anchor point at top rear of
section 5.
78. Remove and disassemble top wear pads (10), cam
plates (32), and retainer plates (9) from rear of section 5.
Assembly
1. Pre-assemble top wear pad (10) at rear of section 5 with
cam plates (32), retainer plate (9), flatwashers (126) and
bolts (147).
2. Install cable (94) in anchor point at top rear of section 5
securing in place with screw (144) and lockwasher
(132).
3. Install cable (97) in lower rear anchor point with screws
(148).
4. Install wear pad (25) at rear outside of section 5 with
screws (18) and Loctite 243.
5. Slide section 5 (1) into section 4 (2) with cables pre-
installed. Be sure cables (94) are around sheave (48)
and facing rear of section.
6. Align sheave (48) with end plate pin (8) to secure and fit
in sheave (48).
7. Shim (49) as required to maintain clearance between
sheave and inside of section.
8. Install countersunk head screws (153) in two tapped
holes in rear. Install countersunk head screws (153) with
flatwashers (125) and nuts (139) in front two holes.
9. Install top and bottom side wear pads (15 LH and 16 RH)
and shim (50) as required the top and bottom are the
same.
10. Pull cables taught. Raise section 5 and install pre-
assembled bottom inner plate (62), wear pad (21) and
screw (148) assembly.
11. Install six screws (147) in bottom with hardened
flatwashers (126).
12. Install top retainer plate between sections.
13. Install retainer (4, Figure 4-24)/spacer plate (5).
14. Install cable retainer bracket (1).
15. Install top wear plate (2) with capscrews (18) and
lockwashers (14).
16. Slide sections together leaving 12 in extended.
17. Route, wrap, and stow cables inside to avoid damage at
next insertion.
18. Pull cables (96, Figure 4-23) through cutouts in rear of
section 4.
19. Install cables (97) in rear anchor slots.
NOTE: Install rear sheaves (56) and pin (57) with grease
hole aligned with proper hole in order to lube.
NOTE: For all sheave and pin assemblies, sheave (56) is
recessed for pin (57), sheave must face pin recess
or it will not turn.
20. Install three countersunk screws (153) and tighten.
21. Install cable retainers (26 LH and 27 RH) with two
screws (153) to secure cable facing rear.
NOTE: Be sure two larger cables (94) threaded end are
routed on top of wear pad/retainer and facing rear.
22. Grease sheave assembly (56 and 57) with grease
adapter nipple.
23. Install lower white wear pad (23)/cable retainer with bolts
(78) to outside of rear of section 4 to hold cables facing
front of boom.
REFERENCE ONLY