JLG sky trak mmv Service Manual page 54

General Information, Specifications and Maintenance
b. Change Fuel Filter
500
MS21802
Change the fuel filter every 500 hours of engine opera-
tion, or at shorter intervals with water evidence of con-
taminated fuel.
1. Level the vehicle, ground the attachment, place the
travel select lever in the [N] NEUTRAL position, place
the neutral lock lever in the [N] NEUTRAL LOCK
position, engage the parking brake switch and shut
the engine OFF. Allow engine to cool.
2. Place an Accident Prevention Tag on both the
ignition switch and steering wheel, stating that the
vehicle should not be operated. (Refer to Section
1.5, Accident Prevention Tag Usage .)
3. Open the engine cover. Clean around the fuel-filter
head (1).
4. Unscrew the fuel filter and dispose of properly.
5. Clean the filter head gasket surface and replace the
o-ring.
6. Fill the new fuel filter (2) with clean No. 2 diesel fuel.
Alternate fuels can also be used. They are: JP-5,
JP-8 or Jet A-1.
7. Lubricate the o-ring seal (3) with clean No. 2 diesel
fuel. Alternate fuels can also be used. They are:
JP-5, JP-8 or Jet A-1.
8. Install the fuel-filled filter and tighten by hand. DO
NOT over-tighten.
Note: DO NOT over-tighten. DO NOT tighten with
mechanical means (tools, etc.). Mechanical over-tighten-
ing may distort the threads or damage the o-ring seal.
9. Close the engine cover.
Controlled venting is provided at the injection pump
through the fuel drain manifold. Small amounts of air in-
troduced by changing the fuel filter element will be vented
automatically as long as the element was filled with fuel
prior to installation.
2.38
c. In-line Fuel Strainer
OS0870
1. Level the vehicle, ground the attachment, place the
travel select lever in the NEUTRAL [N] position, place
the neutral lock lever in the [N] NEUTRAL LOCK
position, engage the parking brake switch and shut
the engine OFF. Allow engine to cool.
2. Place an Accident Prevention Tag on both the
ignition switch and steering wheel, stating that the
vehicle should not be operated. (Refer to Section
1.5, Accident Prevention Tag Usage .)
3. Open the engine cover.
4. The in-line fuel strainer (4) is located down line from
the engine lift pump (5). Loosen the two hose
clamps (6) securing the strainer in place.
500
MS21802
5
8
6
Model MMV Rev. 12/04
OS0870
1
7
3
2
4
MM3240