Farr HD8625, Technical Manual

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T
echnical
M
anual
hD8625 8-
5
/
8
” 35K T
ong
3.17
Assembly Procedures (continued...):
36. Insert the shifter detent ball (PN 02-0018) into the detent tube, followed by the detent spring (PN 01-0040). Thread a 7/16” NF hex
jam nut onto a 7/16” UNF x 1-1/4” hex nut, then thread the 7/16” bolt into the detent tube. This is the detent force adjustment bolt
and lock nut.
37. Insert two 5/16” x 3/4” dowel pins (PN 09-0170) into the un-threaded holes in the rear of the tong, behind the clutch drive gear on
either side of the cutout in the top plate.
38. Place motor mount (PN 1050-150) on to top plate over the dowel pins installed in the previous step, and secure with four 1/2” NC x
1-1/2” hex socket head cap screws.
39. Bolt the shifter lug weldment (PN 101-0016) onto the top plate with four 3/8” NC x 1-1/4” hex bolts and 3/8” lock washers.
40. Attach the motor gear (PN 997-A10-149) to the motor shaft, securing with two 3/8” NC x 3/8” flat point hex socket set screws. Do not
neglect to install the 5/16” square x 1-1/2” key between the gear and the motor shaft..
41. Install the motor (PN 87-0007) onto the motor mount. Secure the RH side of the motor to the motor mount with two 1/2” NC x 1” hex
socket head cap screws and 1/2” lock washers.
42. The LH side of the motor is secured with two 1/2” NC x 1-1/4” hex socket head cap screws and 1/2” lock washers, which also secures
the torque gauge holder weldment (PN 1500-09-04A).
43. Install shifting handle (PN 1037-D-20B). Secure the handle to the shifter shaft and shifter pivot lug weldment with 5/16” x 1-1/2 clevis
pins. Use a hitch pin on each clevis pin to ensure they do not become dislodged.
44. Install thirteen cam followers (PN 02-0107) in the top cage plate (PN 1050-21HT), and secure each a with 5/8” UNF hex jam nut and
5/8” lock washer. Once installed the cam followers will ride in the top groove in the rotary gear.
45. Install thirteen cam followers (PN 02-0107) in the bottom cage plate (PN 1050-22HT), and secure each a with 5/8” UNF hex jam nut
and 5/8” lock washer. Once installed the cam followers will ride in the bottom groove in the rotary gear.
46. Support the bottom cage plate assembly against the bottom of the rotary gear, with the cam followers in the groove in the bottom of
the rotary gear and the opening of the cage plate aligned with the opening in the tong body.
47. Place the top cage plate assembly on the top of the rotary gear, with the cam followers in the groove in the top of the rotary gear and
the opening of the cage plate aligned with the opening in the tong body.
I
llustratIon
3.H.7: t
ong
a
ssemBly
- t
oP
s
HIfter
B
usHIng
a
ssemBly
M
ainTenance