CAT Articulated Truck 725 Specifications Page 34
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SEBU8524 135
Maintenance Section
Fuel System Primary Filter - Clean/Inspect/Replace
Type 2
g01435860
Illustration 169
Note: TheenginestartswitchmustbeintheOFF
position in order to prime the fuel system.
1. Open purge screw (4).
2. Hold switch (3) upward in order to operate the
electric fuel priming pump. This will fill the engine
fuel lines and the fuel filters with fuel.
3. Operate the priming pump until the flow of fuel is
free of air bubbles. Do not operate the pump for
more than two minutes.
4. Close the purge screw.
5. Continue to ope
rate the priming pump in order to
build fuel pressure. As the fuel pressure increases,
the priming pump will come under load. Listen
for the primin
g pump to come under load. Do not
continue priming the fuel system after the priming
pump is under load. Do not operate the pump for
more than two
minutes.
Note: The priming pump will not come under load
until the pu
rge screw has been tightened.
6. Start the engine. If the engine starts but the engine
runs rough,
continue to run the engine at low
idle until the engine runs smoothly. If the engine
will not start after several attempts, consult your
Caterpill
ar dealer.
i0358027
6
Fuel System Primary Filter -
Clean/I
nspect/Replace
SMCS Code: 1260-510; 1260-571
NOTICE
Do n ot fill fuel filter with fuel before installing the fuel
filter. Contaminated fuel causes accelerated wear to
fuel system parts.
NOTICE
Care m
ust be taken to ensure that fluids are contained
during performance of inspection, maintenance, test-
ing, adjusting and repair of the product. Be prepared to
coll
ect the fluid with suitable containers before open-
ing any compartment or disassembling any compo-
nent containing fluids.
Refer to Special Publication, NENG2500, “Caterpillar
Dealer Service Tool Catalog” for tools and supplies
suit
able to collect and contain fluids on Caterpillar
products.
Dis
pose of all fluids according to local regulations and
mandates.
1. Park the machine on a level surface. Ensure that
th
e parking brake is fully engaged. Lower the truck
body or OEM attachment and stop the engine.
2. Ra
ise the hood. Refer to Operation and
Maintenance Manual, “Hood Control”.
3
.
C
lean the outside of the primary fuel filter element.
- MAINTENANCE INTERVALS 1
- Operation and 2
- Maintenance 2
- Maintenance Interval Schedule 3
- Autom atic Lubrication Grease 5
- Tank - Fill 5
- (If Equipped) 5
- Grease Recommendations 6
- Backup Alarm - Test 7
- Battery - Recycle 7
- Battery or Battery Cable 7
- Inspect/Replace 7
- Body Pivot Bearings 8
- Brake Pads - Check 9
- Brake System Air - Pu rge 10
- Braking System - Test 11
- Illustration 126 12
- Illustration 127 12
- Illustration 128 12
- Circuit Breakers - R eset 13
- Cooling System Coolant (ELC) 13
- Illustration 131 14
- Illustration 132 14
- Illustration 130 14
- Coo ling System Coo lant 15
- Extender (ELC) - Add 15
- - C heck 15
- Illustration 135 16
- Illustration 137 17
- Illustration 138 17
- Cranksh aft Vibration Dam per 18
- - Change 19
- Level - C h eck 20
- Illustration 146 21
- Inspect/Repl 22
- Engine Air Filter Primary 23
- Element-C 23
- Engine Air Filte r Secon dary 24
- Element - Replac e 24
- Engine Cran kcase Breather 24
- Engine Oil L evel - Ch eck 25
- Engine Oil Sampl e - Obtain 25
- Illustration 156 28
- Illustration 157 28
- Illustration 158 28
- Engine Valve L ash - Check 29
- Ether Starting Aid Cylinder 30
- (OEM Attachmen t if Equipped) 30
- Front Frame 31
- Front Suspension Frame 31
- Oscillating Hitch 31
- Rear Frame 32
- Rear Frames 32
- Dump Body 32
- Radiator Mounts 32
- Mounts for the Suspension 32
- Fuel Sy stem 33
- Fuel System Primary Filter 34
- Illustration 170 35
- Illustration 171 35
- Fuel Syst 36
- Fuel Tank Cap and Strainer 36
- Fuel Tank Water and Sediment 37
- Fuses - Re place 38
- Hoist C ylinder Bearing s 39
- Lubricate 39
- Illustration 178 40
- Illustration 179 40
- Illustration 180 40
- Hydrauli 41
- Hydraulic System Oil Level 42
- Hydrau lic System Oil Samp le 43
- Hydrau lic Tank Breat her 43
- Clean/Inspect/Replace 43
- Hydrau lic Tank Strainer 44
- Clean/Insp ec 44
- Oscillating Hi tch - Ad just 44
- Oscillating Hitch - Lubricate 45
- Radiator Core - Clea n 46
- Refrig erant Dryer - Replace 47
- Rollover Protective Structure 47
- (ROPS) - Inspect 47
- Seat Belt - Insp ect 49
- Seat Belt - Replace 49
- Secondary Steering - Test 49
- Steering Cylinder Bearings 50
- Suspension System - Check 51
- Suspension and Su spen sion 51
- Cylinder Bear 51
- Tire Inflation - Ch eck 52
- Torque Converter and 52
- Transmission O il - Change 52
- Illustration 213 53
- Illustration 214 53
- Illustration 215 53
- Ecology Dr ain 54
- Transmission 55
- Oil Filter 55
- Oil Level 56
- Torque Con 57
- Transmission O il S ample 57
- Illustration 224 58
- Illustration 225 58
- Tran sfer G ear Oil Filter 59
- Illustration 230 60
- Illustration 229 60
- Transfer Gear Oil Samp le 61
- Illustration 232 62
- Illustration 233 62
- Illustration 234 62
- Windows - Clean 63
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