10-5/8 HYDRAULIC BACKUP
Model 02F10E
© AUGUST 20, 2013
PAGE 13
10.0 STORAGE
After each job the Backup should be properly cleaned with a petroleum based cleaning agent and the
unit should be stored in a dry environment.
For long term storage the unit should be drained of all fluids and stored in a clean and dry environment.
Before using, fully inspect all components of the unit and ensure to re-grease as per grease guide.
11.0 TROUBLESHOOTING GUIDE
The following serves as a simple guide to some of the problems that may be encountered while using
the Hydraulic Backup. If the problem persists, or is not listed here, please contact any authorized
Universe Power Tong service centers.
1. Jaws are slipping or not biting the tubular properly.
a) Check the tubular diameter and ensure proper sizes of jaws and dies are being used. Refer
to the die selection table in Section 12.2.
b) Check to ensure that the jaws are greased.
c) Ensure the dies are not worn and clean. Use a wire brush to clean if required. If worn, replace
the dies.
d) Ensure there is enough time being allowed for the pressure to build up in the cylinder when
the jaws are clamped.
e) Ensure the Backup is leveled when biting onto the tubular.
f) Check that the pressure gauge mounted in the Backup is reading correctly by verifying the
reading against another calibrated pressure gauge attached to the pressure side.
g) Verify that when the Backup is clamping the tubular the pressure gauge is reading the correct
required pressure. If not, adjust the pressure relief valve as per Section 8.0.
h) If all of the above still do not remedy the situation, check to ensure all the arm pins are not
loose and worn. Replace those that are.
2. The Backup pressure clamping pressure decreases slowly.
a) Check all fitting and hoses for leaks, especially those coming off the pressure side of the
cylinder (refer to Section 12.3 for location).
b) The cylinder seals may be worn or damaged. Take the cylinder out of the Backup and check
or replace seals.
c) The check valve located on the inside of the Backup (refer to Section 12.3) may be leaking
and may need replacing.
3. The load cell gauge is not reading properly (not within 10%).
a)
Ensure when under no load the load cell piston is fully extended (should stick out 1/2”). If
not, the load cell unit may require more oil (refer to Section 3.1).
b) Check to make sure when under torque the back is free to move with no obstructions. The
contact points when under torque should only be the load cell on the back and the side
bearing rollers in the legs.
c) Check to make sure the Tong is applying the correct torque output.
