Section  3 
Scheduled  Maintenance 
3-l.  GENERAL 
Scheduled  maintenance  is  “preventive”  maintenance. 
Major  repair  can  be  avoided  by  correcting  problems  when 
they  are  small.  When  performing  maintenance,  always 
look  for  signs  of  potential  trouble,  such  as  loose  connec- 
tions  or  dirty  components.  When  running  the  set,  listen  for 
any  unusual  noises. 
NOTE  -  Oil  Change 
3-2.  SCHEDULED  MAINTENANCE 
Refer  to  Table  3-1  for  scheduled  maintenance  requirements. 
Perform  each  function  at  the  indicated  time  interval.  For 
each  function,  refer  to  the  applicable  paragraph  for  instruc- 
tions. 
NOTE 
On  a  new  engine  change  the  oil  after  the  first 
five  hours  of  operation,  and  thereafter  on 
K181QS  and  K341QS  change  oil  every  25 
hours.  On  KT17,  K582QS  &  L654  change  oil 
every  50  hours. 
For  maintenance  work  on  engine  components, 
refer  to  the  Kohler  engine  service  manual 
which  covers  the  engine  model. 
Every 
1 
Before  Every  Every  Every 
. 
Each 
25  50 
100  500 
Function  Startup  Hours 
Hours  Hours  Hours 
. 
Compartment  -  Remove  dirt.  Blow  dry 
compressed  air  through  cooling  inlets 
(set  running). 
X 
I 
Air  Inlet  and  Outlet  -  Clean. 
X 
Oil  Level  -  Check. 
X 
Check  Exhaust  Pipe.  X 
I 
Oil  -  Change. 
See  note  above. 
. Oil  Filter  -  Change. 
X 
Air  Cleaner  Element  -  Clean 
(change  every  200  hrs.). 
X 
Fuel  Sediment  Bowl  or  Filter 
(if  equipped)  -  Remove  and  clean. 
X 
Clean  Electric  Fuel  Pump  Filter  - 
See  owner’s  manual. 
X 
Check  Coolant  Level  In  Radiator  (7.5KW)  X 
Check  Fan  Belt  Tension  (7.5KW) 
X 
Spark  Plug  -  Clean  and  regap. 
X 
Point  Contacts  -  Service  or  replace. 
X 
Brushes  and  Collector  Rings  - 
Check  and  service. 
X 
Ignition  Timing  - 
Check  and  correct. 
X 
Rectifier 
-  Regulator  -  Check 
condition  and  battery  charging. 
X 
Alternator  Stator  -  Check  leads  and 
connections.  X 
Starting  Motor  -  Check  brushes  & 
commutator. 
X 
Engine  External  Surface  -  Clean  screen, 
cooling  fins,  block,  oil  fill  area. 
X 
Valve  Clearance 
-  Check  and  adjust 
valve  stems  and  tappets.  X 
I 
Crankcase  Breather  -  Check  valve  and 
gaskets,  clean  filter,  check  hoses. 
X 
Cylinder  Head  -  Remove,  clean 
and  inspect. 
X 
. 
Electric  Fuel  Pump  -  Service  filter. 
X 
1-i:  50  hours. 
Check  Electrolyte  Level  in  Battery 
---_--.-_  .  ..-_ _ 
Table  3-1.  Scheduled  Maintenance 
3-1