Operation Maintenance Manual
Power Slip PS-500
PN 757000-D - Revision: 17 (up to SN 138212) 06-2018
136
IN
SP
EC
TIO
N /
M
AI
N
TE
NAN
C
E
6.2
Inspections
FORUM Handling Tools recommends to perform
inspections in compliance with API RP 7L at specified
intervals and in inspection categories. Otherwise, the
frequency of required inspections depends on the
conditions of use of the PS-500.
Before inspection, remove all foreign material such as dirt,
paint, lubricants, oil, abrasion, etc. from the affected parts.
Use suitable methods such as stripping off paint, steam
cleaning or sand blasting.
After an inspection the scope and results of the tests
performed has to be documented.
In the event of cracks, excessive wear, etc. contact
FORUM Handling Tools or an authorized service company.
INFO
The specified maintenance intervals are
recommended for the FORUM Handling Tools
Power Slip PS-500s during its service life. The
necessity of inspections depends primarily on the
following conditions:
- Ambient conditions
- Load cycles
- Regulatory requirements
- Period of use
- Tests
- Repairs
- Overhauls
Inspection intervals
Category Intervals
Preparatory measures
I
Daily
PS-500 mounted to Rotary Table.
II
Weekly
PS-500 mounted to Rotary Table.
III
Semiannually
PS-500 removed from
Rotary Table.
PS-500 partly dismantled.
IV
Annually
PS-500 removed from
Rotary Table.
PS-500 completely dismantled.
INFO
The above-mentioned inspection intervals refer to
a 100% use of the PS-500 on each day of a week
(24 / 7). Personal inspection intervals may vary
according to the type and extent of use and may
need to be adjusted. All inspection categories are
in accordance with the latest API RP 7L.
Ensure that only sufficiently qualified
and trained personnel accomplish
maintenance work.
6.2.1
Inspection of Hydraulic Equipment
Check the hydraulic equipment daily for leakages. If
unacceptably, high leakages occur internally or externally
contact FORUM Handling Tools or an authorized service
company.
6.2.2
Inspection Following Critical Loads
Perform an inspection IMMEDIATELY following any critical
or unexpected loads. Critical loads could be:
- Loads resulting from shock when the drill pipe wedges.
- Pulling wedged drill strings.
- Holding heavy drill pipes / drill strings.
- Jarring.
- Operation at very low ambient temperatures
(< - 20°C to - 4°F).
6.2.3
Inspection Following Removal
Generally, the PS-500 should be inspected immediately
before it is taken out of service temporarily or stored.
Moreover, it should be inspected before putting back into
service.
- It is necessary to disassemble the PS-500 in an
appropriately equipped workshop to check for excessive
wear, deformation, cracks and other damage.
- Perform repair work only in compliance with the
manufacturer‘s recommendations. These are available
from FORUM Handling Tools.
- Ensure that only FORUM Handling Tools or an
authorized service company in compliance with the
welding specifications issued by FORUM Handling Tools
accomplishes welding work on cast parts.
- If the field inspection indicates that further inspection
work is required, remove the PS-500
and have it
inspected in an appropriately equipped workshop.
