bids are invited for repair and overhauling service - uninterruptible power supply (ups); l 1571 h2s sensor fitted in amr not working in 24v dc suspect invertor defective defect to be rectified and proved for satisfactory operation; no; buyer premises , repair and overhauling service - uninterruptible power supply (ups); l 1572 two window wiper in bridge is jammed and not working suspect roller mechanism not working and one motor insulation low window wiper to be dismantle and motor to be rewinde.. , repair and overhauling service - uninterruptible power supply (ups); l1573 winding of galley heavy duty grinder motor worn out motor to be rewinded and proved for satisfactory operation; no; buyer premises , repair and overhauling service - uninterruptible power supply (ups); l1574 pcr ventilation fan tripping didr carried out and found motor showing low insulation; no; buyer premises , repair and overhauling service - uninterruptible power supply (ups); l1575 quarter deck loudhailer speaker cable showing open circuit cable to be rewened and speaker to be proved for satisfactory operation; no; buyer premises