Farr HD8625, Technical Manual

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3.18
hD8625 8-
5
/
8
” 35K T
ong
T
echnical
M
anual
Assembly Procedures (continued...):
48. Insert two cage plate spacers (PN 1050-C3-38) between the cage plates at the front of the cage plates next to the rotary gear. Secure
the cage plates through the spacers using 1/2” UNC x 7-1/2” hex bolts, 1/2” narrow flat washers (on the bottom) and 1/2” UNC nylock
nuts.
49. Slide a 1/2” flat washer on to a 1/2” UNC x 9-1/2” hex bolt, followed by the backing pin spacer (PN 101-4186). Slide the larger diam-
eter hole in the backing pin retainer link (PN 101-4187) ever the end of the 9-1/2” hex bolt on to the backing pin spacer.
50. Coat half of the threaded connecting stud (PN 101-4097) with blue Loctite and screw in to the backing pin (PN 101-4188).
51. Insert the exposed half of the threaded dowel pin through the smaller diameter hole of the backing pin retainer link. Slide the small
backing pin spacer (PN 101-4096) over the threaded dowel against the backing pin retainer link.
52. Position the remaining cage plate spacer (PN 1050-C3-38) between the cage plates at the rear of the opening. Insert the bolt of the
backing pin assembly through the cage plates and cage plate spacer, and the backing pin in to one of the backing pin holes at the
rear of the top cage plate. Secure the bolt with a 1/2” narrow washer and a 1/2” UNC nylock nut.
53. Thread the rear door cylinder mounting lug (PN 1050-12-001) into the top plate next to the LH top brake band lug weldment (see
illustration 3.H.3).
54. Install the door pivot shoulder bushings (PN 101-0110) in the door weldment assembly (PN 1050-C4-10) (see Pp. 5.28- 5.29 for
correct bushing orientation).
55. If not already done, install the remaining support roller assembly less the shaft and fasteners between the body plates in the door
pivot location.
56. Align the pivot holes in the door weldment with the pivot holes in the top and bottom plates. Slide a 1-1/8” narrow flat washer on to
the door pivot roller shaft (PN 101-3940) and insert the shaft through the door bushings, support roller components, and body plates.
Once the shaft is fully inserted (it may need to be lightly tapped) secure with a 1” narrow flat washer and 1” UNS thin nylock nut.
57. Thread a 1/2” UNC hex nut on to a 1/2” UNC x 1-3/4” hex bolt. Thread the hex bolt in to the threaded hole on the front of the door
weldment.
58. Refer to Pp. 5.28 - 5.29 for a door assembly illustration. Lightly grease the door latch adjustment cam (PN 1037-A-14). Position the
door latch weldment (PN 1050-15) at the front of the door weldment, and insert the two latch springs (PN 997-16) between the latch
weldment and the door weldment. Press the latch weldment against the door weldment until the latch pivot holes align, and insert
the door latch cam shaft. Secure the latch adjustment cam to the top plate of the door weldment with a 3/8” UNC x 3/4” hex bolt and
3/8” lock washer.
59. Install mechanical door stop (PN 101-1833) to the bottom plate of the tong next to the LH brake band retainer weldment. Secure with
two 3/8” NC x 2” bolts and 3/8” lock washers.
I
llustratIon
3.H.8: t
ong
a
ssemBly
- f
ront
C
age
P
late
s
PaCers
M
ainTenance
Cage plate spacers & 1/2” NC x
7-1/2” bolt and nut sets