TEDA XQ140 - Common Troubles and Troubles Shooting Guide

MODEL XQ140/20 HYDRAULIC POWER TONG OPERATION MANUAL
YANCHENG TEDA DRILLING & PRODUCTION EQUIPMENT CO.,LTD
7．Common Troubles and Troubles Shooting Guide
Common
troubles
causes
Remedy
Master tong
slips or dies
don’t
stretch out.
1 Die excessive wear，die unsuitable
or die groove full of hard things
Change die as table 3 and table 4
or clean hard things in die
groove.
2 Tong head braking torque
Tighten or change brake spring.
3 Jaw plate roller or roller shaft
damaged or get stuck.
Clean up parts or replace.
4 Ramp plate worn out or damaged.
Replace ramp plate.
5 Tong body is not level
1 Set the master tong level
2Adjustment ， to make backup
tong and mater tong levels
6 Front and rear guide pole guide
spring blind or novelistic.
Clean or change spring
7 Die seat choose unsuitable.
Change die seat refer to gauge (or
change in pairs)
8 Pipe string hardness≥340HB
Purchase special dies.
Backup tong
slips or dies
don’t
stretch out.
1Wrong connection of hose between
master and backup tongs.
Re-connect.
2 Oil passage of master and backup
tong blocked.
Clean oil channel and filler core.
3 Rack plunger gets stuck
Shoot as the above-mentioned
methods.
4 The connection point between
cylinder body of tong tail and the tail
seat of the backup tong damaged.
Change tail cylinder, use same
specification die seat
5 Above eight slipped causes
According to the aforementioned
method。
Backup tong
slips or dies
don’t
stretch out.
1 Roller moves out of the intended
distance.
Never make up or break out at
over torque; choose proper die
seats.
2 Damage of jaw plate, roller axle,
ramp or jaw plate frame,etc.
Repair, grind or replace proper
parts, don
’
t work at over torque.
3 Braking torque from tong head too
small
See the above-mentioned
method.
4 The jaw plate roller gets stuck.
Clean, grind or replace roller and
roller axle.
5 Die seats or dies of different
specifications are used on the two
sides of the master tong or backup
tong.
Choose the right dies or die
seats.
Master tong
and backup
tong
opening are
not aligning.
1 Wrong reverse shaft direction
180
º
twist reverse shaft, then
restoration.
2 Jaw plate is deformation or
damaged
Grinding the damage area or
replace.
3 Reverse shaft broken
Change reverse shaft ， not
working exceed torque