Operating instructions

MAINTENANCE
5-2 15 Nov 09
BEARING LUBRICATION (CONT’D)
The recommended lubricant for the shaft bearings is NLGI grade 2 mineral oil lithium or lithium
complex base grease. Grease should be injected into grease fitting until purged through the fitting
regardless of the quantity added. Bearings should be re-lubricated in accordance with the
following schedule:
Daily Operating Hours Interval (Weeks)
8 10
16 5
24 3
TROUBLESHOOTING
As long as the mud level in the tank remains at or above 12” (305mm), the degasser will circulate
fluid up to the spray tank. Malfunctions are generally caused by incoming power disruptions or
tripping of overloads or blown fuse(s) in the electrical control panel. Always check these items and for
correct incoming power first before proceeding with further checking and tests.
Refer to the electrical schematic diagram in Section 8 for assistance in tracing electrical
malfunctions. Before performing electrical continuity checks, always shut down, lock out, and tag out
electric power to degasser.
WARNING! TO AVOID SERIOUS PERSONAL INJURY BE SURE EQUIPMENT IS
LOCKED OUT, TAGGED OUT, AND DE-ENERGIZED PRIOR TO PERFORMING
MAINTENANCE.
PARTS REPLACEMENT
Defective parts should be replaced as soon as possible to prevent further damage to the
equipment. Refer to the applicable drawings in Section 8 for Derrick component locations and part
numbers. Refer to Section 10 for supplier component data.
SPARE PARTS
Since all potential part replacements cannot be predicted, the spare parts inventory should be
based on the user’s experience with similar equipment.
Consider the following factors when establishing a spare parts inventory:
 Duty cycle
 Ambient temperature
 Operating environment