Farr 80-0420-16, Техническое руководство

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KT5500 5-
1
/
2
” T
ong
& CLInCHER® B
aCKup
S
ECTIon
C
onTEnTS
3.27
T
ECHnICaL
M
anuaL
M
aInTEnanCE
L. DAILY INSPECTION & MAINTENANCE CHECKLIST (BACKUPS)
Farr Canada recommends that the following inspection and maintenance procedures be performed before each use, and at least
once per day when the backup is in steady use, in the order in which they are listed.
Do not perform any maintenance while the tong and backup assembly is connected to any hydraulic power supply. Farr Canada
recommends that all hydraulic lines are fully disconnected, and residual hydraulic pressure is bled off. Ensure adequate containment
is in place to prevent environmental contamination from residual hydraulic fluid.
A
ll
u
nits
1.
Perform an initial wash of the backup in order to remove the majority of dirt and grease build-up.
2.
Perform an external inspection. Check to ensure there are no loose or missing fasteners - replace if necessary.
3.
Check to see if backup is parallel to the tong - if the backup is resting at an angle, one of the front leg springs is likely
broken or fatigued to the point it must be replaced.
W
eDge
B
Ackup
o
nly
4.
Remove access cover from top plate. Perform a visual inspection ot the interior of the backup - use a flashlight if neces-
sary. Premature wear where there are moving parts (bare metal where there used to be paint, and metal shavings in
the grease are good indicators) may show where a component needs to be adjusted, or if necessary, replaced.
5.
Inspect latch mechanism to ensure the door latch plate completely engages the door. Adjust or replace if necessary.
6.
Grease UC-300 slider pads, ram guides, door cylinder pivots, and door pivots.
c
lincher
B
Ackup
o
nly
4.
Use a flashlight to perform a visual inspection of the interior of the backup - remove one side panel if necessary. Prema-
ture wear where there are moving parts (bare metal where there used to be paint, and metal shavings in the grease are
good indicators) may show where a component needs to be adjusted, or if necessary replaced. Replace any removed
panels when inspection is complete.
5.
Grease clincher cylinder guides using the grease fittings on the top body plate.
6.
Ensure the splines on the clincher cylinder faces, and on the rear of the die are clean and free of debris before insert-
ing clincher die. If die are already installed, ensure fasteners in the die retainers are tightly secured.
7.
Inspect rear spring hanger assembly. Ensure all eye bolts, shackles, and cotter pins are in place and in good condi-
tion.
8.
Inspect clincher cylinders for hydraulic fluid leaks once the system pressure has been restored.
f
Arr
-s
tyle
B
Ackup
o
nly
4.
Inspect cam ring gear for broken teeth.
5.
Lubricate the cam follower array.
6.
Inspect the jaws and dies. Inspect the jaw roller pins for signs of damage - replace pins if necessary. If the pins are
welded in place, replace the entire jaw assembly. Ensure dies are secure in the jaw - replace worn dies if necessary.
Ensure that the jaw rollers rotate freely. Check to ensure the size of the loaded jaws match the size of casing or pipe
you are running.
7.
Inspect front and rear cam cylinder supports. Repair or replace any parts that are broken, cracked, or bent.
8.
Inspect rear spring hanger assembly. Ensure all eye bolts, shackles, and cotter pins are in place and in good condi-
tion.
9.
Open the backup door and inspect the condition of the latch. Repair or replace damaged latch components. If latch
appears to be in good condition, close the door, then tug firmly on it to ensure the door remains latched.
A
ll
u
nits
(A
fter
s
tArting
p
oWer
u
nit
)
10.
Perform a visual inspection of pressurized hydraulic lines - document and correct any hydraulic fluid leaks.
11.
Perform a full functional test of the backup. Document and correct hydraulic leaks from the hydraulic valve bank, or
from any hydraulic cylinders that are in use on the backup.