TEI TE260, Руководство по обслуживанию и ремонту

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Before performing any maintenance make certain of the following:
1. Only qualified personnel should perform service on the TE260 Drifter.
2. Use only original TEI factory parts
3. Make certain maintenance is performed in a clean/sheltered area.
4. Only qualified personnel should perform cleaning, lubricating, service and repair of the drill.
5. Make certain all bolts and screws are properly torqued according to manufacturers
recommendations.
6. Ensure that all waste is disposed of according to environmental regulations.
DAILY MAINTENANCE
Normal operation of the TE260 requires daily greasing of the front rotation housing every 2
percussion hours using a moly disulfide high temperature type grease. This is most important to
prevent galling and failure of the rotation gears and bearings. During the first week of operation or
after replacement of the accumulator diaphragm, the charge pressure must be checked daily. In
addition all hydraulic hoses must be inspected for chafing and pinched or damaged sections. The
hydraulic oil must be checked for proper level and color. A white or milky appearance or foaming
of hydraulic oil indicates water contamination. Continued operation with contaminated oil will
damage both the drill and pump. Hydraulic oil must be equivalent to mobile DTE-24 through DTE-
26 depending on ambient operating temperature.
WEEKLY MAINTENANCE
During the weekly check, the front end cap (TE26234G) and grout/water swivel (TE26823G40)
must be removed to check the chuck. Pull the shank from the housing. Remove the thrust washer
(TE30835SK), chuck (TE357) and thrust block (TE35161). Check for burning of the splines
indicating lack of lubrication. The thrust blocks (TE35161) must be checked for cracks and
deformation at the shank spline contact surface. Replace if worn more than 1/16”(2mm) into face.
Charge pressure of the accumulator must also be checked weekly. Excessive cab vibration and/or
hose jumping and overheating of the hydraulic oil indicates a blown or uncharged accumulator. The
high pressure accumulator should be charged between 800 to 950 psi using nitrogen gas. The low
pressure accumulator requires 95 to 125 psi charge pressure depending on the system back
pressure.
Caution: Remember that disassembly beyond the removal of the chuck end cap or removal of
the rotation motor should be done in a clean, dust free area. It is essential that no dirt
particles enter the internal part of the drill and especially in the hydraulic fluid.
MONTHLY MAINTENANCE
With the shank removed as above, remove the 4 bolts retaining the front retaining plates (TE25557)
to the rotation housing. The front plate (RD25281) is then removed. Check the pinion thrust bearing
(RB24338) for wear and breakage. Replace if necessary.
Section 3 Page 3-2