Loader Bobcat 773. Instruction - page 80
FRONT LIGHTS
Removal And Installation
The front lights are mounted in the upper corners of the
operator cab [A].
Pry the rubber light mount free from the operator cab [B].
Pull the light down and remove the three mounting bolts
(Item 1) [C] from the instrument panel.
Disconnect the front light connector from the instrument
panel. Remove the front light from the operator cab.
Reverse the removal procedure to install the front light.
A
P–03956
C
P–03955
1
1
–6–36–
773 BICS Loader
Service Manual
B
P–03995
RELAY SWITCHES
Location
The loader engine harness has relay switches switches
located beneath the engine air cleaner [A] & [B].
There are five switches (Item 1) [A] on the BOSS
®
equipped loader.
The switches are for the starter, switch power, glow plug,
brake and shutdown.
There are four switches (Item 1) [B] on the Standard
equipped loader.
The switches are for the starter, switch power, glow plug
and brake.
Remove the screw (Item 2) [A] & [B] from the mounting
tab on the switch and replace if the switch malfunctions.
A
P–03886
1
2
773 BICS Loader
–6–37–
Service Manual
B
P–03884
1
2
ENGINE
SERVICE
773 BICS Loader
–7–1–
Service Manual
ENGINE SERVICE
AIR CLEANER
Removal And Installation
7–28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BLOWER HOUSING/FAN GEARBOX
Blower Fan Disassembly And Assembly
7–12
. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal And Installation
7–8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tension Pulley Removal And Installation
7–11
. . . . . . . . . . . . . . . . . . . . . . . . .
CRANKSHAFT AND BEARINGS
Removal And Installation
7–67
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing The Crankshaft And Bearings
7–68
. . . . . . . . . . . . . . . . . . . . . . . . . .
CRANKSHAFT GEAR
Removal And Installation
7–61
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CYLINDER BORE
Checking The Cylinder Bore
7–72
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CYLINDER HEAD
Disassembly And Assembly
7–48
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal And Installation
7–47
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing The Cylinder Head
7–59
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Top Clearance
7–59
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE
Engine Mount Replacement
7–34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal And Installation
7–29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE COMPRESSION
Checking
7–36
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE MUFFLER
Removal And Installation
7–5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE SPEED CONTROL
Removal And Installation
7–4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly
7–4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FAN GEARBOX
Assembly
7–20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Backlash
7–25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly
7–15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification
7–14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FLYWHEEL
Flywheel Ring Gear
7–35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal And Installation
7–35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL CAMSHAFT
Governor
7–60
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal And Installation
7–60
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page
Number
Continued On Next Page
Revised Jan. 99
–7–2–
773 BICS Loader
Service Manual
ENGINE SERVICE (Cont’d)
FUEL INJECTION NOZZLES
Checking The Injector Nozzle
7–46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal And Installation
7–44
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL INJECTION PUMP
Adjusting Shut–off Linkage
7–39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking The Injection Pump
7–39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal And Installation
7–40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing The Injection Pump
7–43
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GLOW PLUGS
Checking The Glow Plugs
7–37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal And Installation
7–38
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IDLER GEAR AND CAMSHAFT
Removal And Installation
7–56
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing The Camshaft
7–57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing The Idler Gear And Shaft
7–58
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OIL PUMP
Checking Engine Oil Pressure
7–62
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump Service
7–61
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal And Installation
7–61
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Relief Valve
7–60
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PISTON AND CONNECTING ROD
Connecting Rod Alignment
7–66
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal And Installation
7–63
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing The Piston And Connecting Rod
7–64
. . . . . . . . . . . . . . . . . . . . . . . .
RADIATOR
Removal And Installation
7–6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ROCKER ARM AND SHAFT
Checking
7–53
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIMING GEARS
Checking Backlash
7–59
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIMING GEARCASE COVER
Removal And Installation
7–54
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING
Chart
7–3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VALVE CLEARANCE
Adjustment
7–53
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VALVE, VALVE SEAT AND GUIDE
Checking The Valve Guide
7–50
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reconditioning The Valve And Valve Seat
7–51
. . . . . . . . . . . . . . . . . . . . . . . .
Valve Spring
7–52
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WATER PUMP
Disassembly And Assembly
7–73
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page
Number
Revised June 01