TM 5-2410-241-23-1
0039
Table 1. Preventive Maintenance Checks and Services (PMCS) - Continued.
LOCATION
ITEM TO
CHECK/
ITEM
NOT FULLY MISSION
SERVICE
NO.
INTERVAL
PROCEDURE
CAPABLE IF:
Inspect Rollover Protective Structure
20
1,000 Hours
Loose, missing, or damaged
Rollover
or Semi-
for bolts that are missing, loose, or
bolts. Cracks in welds and
Protective
Annually
damaged. Replace missing or
seams.
Structure
damaged bolts. Replace ROPS if
(ROPS)
cracks in welds and seams are
detected (WP 0225).
Do not weld reinforcement plates to
ROPS/FOPS in order to straighten
ROPS/FOPS structure.
C AU T I O N
21
Every 2,000
Engine Valve
Service
Lash - Check/
Operating the engine with improper valve adjustments will
Hours
Adjust
reduce engine efficiency. This reduced efficiency could result in
Annually
excessive fuel usage and/or shortened engine component life.
N OT E
Measure valve clearance with engine stopped. To obtain an
accurate measurement, allow at least 20 minutes for valves to
cool to engine cylinder head and engine block temperature.
a. Check valve bridge before setting Valves not adjustable or worn.
valve lash. Ensure that valve bridge is
seated equally on both valve stems.
Refer to WP 0107.
b. Check engine valve lash and adjust
as required, refer to WP 0107.
a. Improperly operating valve rotor will Valve rotator worn or damaged.
22
Every 2,000
Engine Valve
Service
shorten valve life because of
Rotators -
Hours
accelerated wear on valves. Metal
Inspect
annually
particles from a damaged valve rotator
could fall into cylinder and damage to
piston head and cylinder head may
result. Refer to WP 0107.
b. Start engine and run at low idle.
Watch top surface of each valve
rotator. Whenever an inlet valve or
exhaust valve closes, each valve
rotator should turn. Refer to WP 0107.
c. Check engine valve lash and adjust
as required, refer to WP 0107.
0039-20
