Farr HD8625, Technical Manual

Page: 36 / 156

2.20
hD8625 8-
5
/
8
” 35K T
ong
T
echnical
M
anual
Making A Connection (Continued)
e) Grasp the tong door handle and pull the door to open (See Illustration 2.H.4). Since your equipment is equipped with a safety
door, opening the doors will inhibit rotation of the cage plate.
I
llustratIon
2.H.4: o
PenIng
t
ong
D
oor
f) Manually engage the threads of the tubing connection being made up. Ensure threads are not cross-threaded.
g) Move the tong on to the pipe above the tubing joint. Use the lift cylinder to ensure the tong jaws are at the correct location above
the connection joint.
h) Firmly close the tong door against the latch post.
i)
Begin rotation with the tong in high gear and the tong motor set to high speed (high speed/low torque). See Section 2.G.2 to
set the tong motor to high speed, and Section 2.G.3 to properly set the tong to high gear. Do not shift gears while the tong is
rotating.
s
eTup
& o
peraTion
SHIFTING TONG WHILE ROTATING THE MOTOR AND CAGE PLATE MAY RESULT IN
CATASTROPHIC GEAR TRAIN FAILURE