User guide
GLASS REPLACEMENT FOR ESP/ST LEVEL GAUGES 
1.  REMOVE HARP PINS FROM CLEVIS PINS ON END GAUGE. 
2.  CAREFULLY REMOVE TEFLON TUBE HOLDER INSERT FROM EACH 
END OF GAUGE. 
3.   REMOVE O-RINGS FROM GLASS AND SLIDE GLASS OUT OF UNIT 
(FOR UNITS WITH SIGHT TUBE SPLICER, IT WILL BE NECESSARY TO 
REMOVE ONE OF THE TEFLON SIGHT TUBE HOLDERS IN ORDER TO 
REMOVE THE GLASS). 
4.  IF UNIT HAS A SIGHT TUBE SPLICER, IT WILL BE NECESSARY TO 
UNSCREW THE SIGHT TUBE SPLICER ASSEMBLY IN ORDER TO 
REPLACE THE GLASS. 
5.  SLIDE GLASS BACK INTO UNIT AND REINSTALL O-RINGS (IF UNIT 
HAS SIGHT TUBE SPLICER RE-ASSEMBLE SPLICER). 
6.  REPLACE TEFLON TUBE HOLDER INSERTS ON BOTH ENDS. 
7.  RE-ALLIGN TUBE HOLDER WITH HOLES IN HOUSING AND INSTALL 
CLEVIS PIN IN EACH END OF GAUGE AND RE-INSTALL HARP PINS 
INTO CLEVIS PINS. 


