Loader Bobcat 853, 853H. Manual - part 6

FUEL SYSTEM

Fuel Specifications

Use only clean, high quality diesel fuel, Grade No. 1 or
Grade No. 2 .

The following is one suggested blending guideline which
should prevent fuel gelling problems:

Stop and cool the engine before adding fuel.
NO SMOKING! Failure to obey warnings can
cause an explosion or fire.

W–2063–0887

Remove the fuel fill cap (Item 1) [A].

Use a clean, approved safety container to add fuel of the
correct specifications. Add fuel only in an area that has
free movement of air and no open flames or sparks. NO
SMOKING! [B].

Install and tighten the fuel fill cap [A].

Fuel Filter

Always clean up spilled fuel or oil. Keep heat,
flames, sparks or lighted tobacco away from
fuel and oil. Failure to use care around
combustibles can cause explosion or fire
which can result in injury or death.

W–2103–1285

We recommend an operator contact their fuel supplier for
local recommendations.

Filling The Fuel Tank

Temp. F

°

 (C

°

)

No. 2

No.1

+15

°

(9

°

)

100%

0%

Down to –20

°

 (–29

°

)

50%

50%

Below –20

°

 (29

°

)

0%

100%

See the SERVICE SCHEDULE, Page 1–3 for the service
interval when to remove the water from the fuel filter.

Loosen the drain (Item 1) [C] at the bottom of the filter
element to drain any water from the filter.

See the SERVICE SCHEDULE, Page 1–3 for the service
interval when to replace the fuel filter.

To replace the fuel filter element (Item 2) [C], use a filter
wrench to remove the filter element.

Clean the area around the filter housing. Put oil on the
seal of the new filter element. Install the fuel filter, and
hand tighten. Remove the air from the fuel system. ( See
Page 1–15.)

A

P–02124

1

C

CD–15123

1

2

–1–14–

853, 853H Loader

Service Manual

B

B–13456

WRONG

FUEL SYSTEM (Cont’d)

Removing Air From The Fuel System

After replacing the fuel filter element or when the fuel tank
has run out of fuel, the air must be removed from the fuel
system prior to starting the engine.

Loosen the air vent plug (Item 1) [A] at the top of the fuel
filter.

Operate the priming bulb (Item 2) [A] until fuel flows from
the filter vent. Tighten the fuel filter vent plug (Item 1) [A].

Loosen the air vent plug at the top of the fuel injection
pump [B].

Again operate the priming bulb (Item 2) [A] until fuel flows
from the air vent plug with no air bubbles showing.

Tighten the air vent plug at the fuel injection pump [B].

Always clean up spilled fuel or oil. Keep heat,
flames, sparks or lighted tobacco away from
fuel and oil. Failure to use care around
combustibles can cause explosion or fire
which can result in injury or death.

W–2103–1285

A

CD–15123

1

2

853, 853H Loader

–1–15–

Service Manual

B

CD–10847

ENGINE LUBRICATION SYSTEM

Checking Engine Oil

Check the engine oil level every day.

Before starting the engine for the work shift, open the rear
door. Remove the dipstick (Item 1) [A].

Keep the oil level between the marks on the dipstick.

Use a good quality motor oil that meets API Service
Classification of CC, CD or CE. (See Oil Chart below.)

Replacing Oil And Filter

See the SERVICE SCHEDULE, Page 1–3 for the service
interval for replacing the engine oil and filter.

Run the engine until it is at operating temperature. Stop
the engine.

Open the rear door. Remove the drain plug (Item 1) [B].
Drain the oil into a container.

Remove the oil filter (Item 1) [C].

Clean the filter housing surface. Put clean oil on the new
oil filter gasket. Install the filter and hand tighten only.

Install and tighten the drain plug.

TEMPERATURE

 

RANGE

 

ANTICIPATED

 

BEFORE

 

NEXT

 

OIL

 

CHANGE

 

(DIESEL

 

ENGINES

 

MUST

 

USE

 

API

CLASSIFICATION

 

CD,

 

CF4,

 

CG4

 

)

 

*

 Can be used ONLY when available with appropriate diesel rating.

–40

SAE 10W–30

SAE 15W–40

SAE 30W

* 

SAE 5W–30

SAE 40W or 20W–50

SAE 20W–20

SAE 10W

RECOMMENDED

 

SAE

 

VISCOSITY

 

NUMBER

(LUBRICATION

 

OILS

 

FOR

 

DIESEL

 

ENGINE

 

CRANKCASE)

SYNTHETIC OIL Use recommendation from Synthetic Oil Mfgr.

C

°

–34

–29

–23

–18

–13

–7

–1

+4

+10

+15

+21

+27

+32

+38

+43 +49

F

°

–30

–20

–10

0

+10

+20

+30

+40

+50

+60

+70

+80

+90

+100 +110 +120

–40

A

CD–15112

1

C

CD–15122

1

–1–16–

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Service Manual

B

CD–15113

1

ENGINE LUBRICATION SYSTEM (Cont’d)

Replacing Oil And Filter (Cont’d)

Put 8 qts. (7,6 L) of oil in the engine. (See Oil Chart, Page
1–16.)

Start the engine and let it run for several minutes. Stop the
engine. Check for leaks at the oil filter. Add oil as needed
if it is not at the top mark on the dipstick.

Always clean up spilled fuel or oil. Keep heat,
flames, sparks or lighted tobacco away from
fuel and oil. Failure to use care around
combustibles can cause explosion or fire
which can result in injury or death.

W–2103–1285

Remove the oil filler cap (Item 1) [A].

A

CD–15114

1

853, 853H Loader

–1–17–

Service Manual