Figure 3-127. Drive (propel) chain, removal and installation.
(3) Repair by straightening bends, welding
hardware.
Replace a mud guard damaged beyond
cracks, and replacement of defective mounting
repair.
Section XX. INSTRUMENTS AND CONTROLS
indicator from control panel.
3-146. General
(3) Install in reverse order.
This section describes organizational maintenance for
b. Cleaning and Inspection.
the instruments and controls, and consists of ammeter,
(1) Clean ammeter with a soft cloth
tachometer hourmeter, oil pressure indicator, water
dampened in an approved cleaning solvent, then dry
temperature indicator, starter push switch, horn push
thoroughly.
switch, run-shutdown switch, governor control, manual
(2) Visually inspect tachometer for broken
shutdown control, and warn (warning) indicator lights.
glass and free movement of drive shaft. Replace a
defective tachometer.
3-147. Tachometer-Time Totalizing Meter
a. Removal and Installation.
3-148. Overspeed Governor Microswitch (for Engine
(1) Refer to figure 3-128 and loosen cable
Model 687C-18-ES)
housing nut.
(2) Remove two nuts and lockwashers
a. Removal and Installation.
securing tachometer to control panel, then lift
tachometer
3-136
