TM10-3930-660-34 16-3.  TANDEM GEAR PUMP - REPAIR (Cont’d) CAUTION Gears  are  closely  machined,  therefore  they  must be  kept  together  as  sets  when  removed  from  a unit.    Handle  with  care  to  avoid  damage  to  the journals or teeth.  Avoid touching gear journals. d.   Remove drive gear (27) and driven gear (28). 5. REMOVE  GEAR  HOUSING  (21)  AND  OTHER  PARTS (29-35). a.   Pry off gear housing (21).  Dowel pins (29) will remain in either gear housing (21) or end cover (30).  Do not remove dowel pins (29). b.   Remove and discard two seals (31)from gear housing (21). c.    Remove thrust plate (32).  Remove and discard seal (33), two seals (34), and two seals (35). 6. REMOVE PARTS (4 and 36-39) FROM END COVER (30). CAUTION Do not grip on or near any machined surfaces during disassembly or assembly. Failure to follow this precaution will cause part damage. a.   Place end cover (30) in a vise with mounting side face down. 16-13