SUBROUTINE CHCKER 
    
      INTEGER     RCOUNT
      INTEGER     RTYPE 
      INTEGER     RSTYPE
      INTEGER     RTMAX 
      INTEGER     RSZMAX
      INTEGER     RECORD (41)   
      INTEGER     RSIZE 
      INTEGER     RSIZES (20)   
      INTEGER ICLP02
      COMMON      /RECORD/ RCOUNT   
      COMMON      /RECORD/ RTYPE
      COMMON      /RECORD/ RSTYPE   
      COMMON      /RECORD/ RTMAX
      COMMON      /RECORD/ RSZMAX   
      COMMON      /RECORD/ RECORD   
      COMMON      /RECORD/ RSIZE
      COMMON      /RECORD/ RSIZES   
      COMMON     /RECORD/ ICLP02
    
      LOGICAL     MPFLAG
      LOGICAL     OVMODE
      LOGICAL     LBMODE
      LOGICAL     LOADRB
      LOGICAL     SFLAG 
      INTEGER     VERS  
      INTEGER     LOADAD
      INTEGER     ZLOC, ZSTR, ZMAX, ZLIMIT  
      INTEGER     CLOC, CSTR, CMAX, CLIMIT  
      INTEGER     NLOC, NSTR, NMAX, NLIMIT  
      INTEGER     DLOC, DSTR, DMAX, DLIMIT  
      INTEGER     OLOC, OMAX, OSET  
      INTEGER     START 
      INTEGER     MODNLX
      INTEGER     CKSUM 
      INTEGER     KEY   
      INTEGER ICLP05
      COMMON      /LDATAX/ MPFLAG   
      COMMON      /LDATAX/ OVMODE   
      COMMON      /LDATAX/ LBMODE   
      COMMON      /LDATAX/ LOADRB   
      COMMON      /LDATAX/ SFLAG
      COMMON      /LDATAX/ VERS 
      COMMON      /LDATAX/ LOADAD   
      COMMON      /LDATAX/ ZLOC, ZSTR, ZMAX, ZLIMIT 
      COMMON      /LDATAX/ CLOC, CSTR, CMAX, CLIMIT 
      COMMON      /LDATAX/ NLOC, NSTR, NMAX, NLIMIT 
      COMMON      /LDATAX/ DLOC, DSTR, DMAX, DLIMIT 
      COMMON      /LDATAX/ OLOC, OMAX, OSET 
      COMMON      /LDATAX/ START
      COMMON      /LDATAX/ MODNLX   
      COMMON      /LDATAX/ CKSUM
      COMMON      /LDATAX/ KEY  
      COMMON      /LDATAX/ ICLP05   
      INTEGER     I 
      DO  13004 I = 1, RSIZE
      CKSUM = IEOR (CKSUM, RECORD(I))   
13004 CONTINUE  
    
      RETURN
      END