System Operational Checks
additional checks or repair information will be given.
This procedure is designed so the mechanic can make
The technical manual group number required for repair
a quick check of the system using a minimum amount
will be given. If verification is needed, you will be given
of diagnostic equipment. If you need additional
next best source of information:
information, read Theory of Operation (Group
Group: 10 (System Operational Checks)
The engine or other major components must be at
Group: 15 (Diagnostic Information)
operating temperature for some checks.
Group: 20 (Adjustments)
Locate system check in the left column and read
completely, following this sequence from left to right.
Group: 25 (Tests)
Read each check completely before performing.
At the end of each check, if no problem is found, that
check is complete. When a problem is indicated,
1 VISUAL INSPECTION OF COMPONENTS
YES: Check complete.
ALL LINES AND HOSES
NO: Reposition hoses or
Inspect all lines and hoses.
lines and tighten or
replace clamps. Tighten
Are lines and hoses straight, NOT kinked or worn from rubbing on other machine parts
fittings or replace O-rings
or "weather checked"?
in fittings. Replace hoses
or lines as required.
Are hose and line connections clean NOT showing signs of leakage, such as oil or
dust accumulation at fittings?
All hose and line clamps must be in place and tight. Clamps must have rubber inserts
or cushions in place to prevent clamps from crushing or wearing into hoses or lines?