Operating Instructions Form No. 1000090
PREVENTIVE MAINTENANCE
WARNING: To help prevent personal injury,
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Disconnect the pump from the power supply before performing maintenance or repair procedures.
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Repairs and maintenance are to be performed in a dust-free area by a qualified technician.
Bleeding Air From The System
Air can accumulate in the hydraulic system if the reservoir oil level is too low. This air causes the wrench to respond
in an unstable or slow manner. To remove the air:
1. The hydraulic wrench(s) must be positioned on their side(s) with the couplers located upward.
2. Remove any load from the wrench(s), and cycle the hydraulic system through several cycles (fully extend and
retract the wrenchs).
Note: The wrench must be at a lower level than the pump to allow air to be released through the pump
reservoir
Hydraulic Fluid Level
1. Check the oil level in the reservoir after each 10 hours of use. Proper oil level is 1/2" from the top of the fill hole
when all wrenches are retracted.
2. Drain, flush, and refill the reservoir with an approved, high-grade hydraulic oil after approximately every 300 hours
of use. The frequency of oil changes will depend upon the general working conditions, severity of use, and overall
cleanliness and care given the pump.
Maintenance Cleaning
1. Keep the pump's outer surface as free from dirt as possible.
2. Seal all unused couplers with thread protectors.
3. Keep all hose connections free of dirt and grime.
4. The breather-hole in the filler cap must be clean and unobstructed at all times.
5. Equipment connected to the pump must be kept clean.
6. Use only an approved, high-grade hydraulic oil in this pump. Change as recommended (every 300 hours).
Sheet No. 3 of 6
Rev 3 Date: 25 May 2012
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