MEGA Corp. MHT175-CAT777-INSP-RSP-5 - Manual (Page 9)

MHT175-CAT777(G)-5
4 Feb 2014
SECTION 2
Scheduled Maintenance Inspections
2-2
FREQUENCY
STEP
DOOR SYSTEM WEEKLY
(150 HRS)
BI‐WEEKLY
(250 HRS)
MONTHLY
(500 HRS)
QUARTERLY
(1000 HRS)
SEMI‐ANNUAL
(2500 HRS)
ANNUALLY
(5000 HRS)
1
Check all door cylinders for damage, security and leaks.
Attaching hardware and pins for damage and evidence of
lubrication.
X
2
Check all door activation hoses for damage, security and leaks.
Ensure the tractor integration points are also inspected (e.g.
junction manifolds, hoist valve and tank).
X
3
Check gooseneck components (flow divider, pressure
regulator valves, counter balance valve and manifolds) for
damage security and leaks.
X
4 Check tractor integration manifolds for damage and security.
X
STEP
ELECTRICAL SYSTEM WEEKLY
(150 HRS)
BI‐WEEKLY
(250 HRS)
MONTHLY
(500 HRS)
QUARTERLY
(1000 HRS)
SEMI‐ANNUAL
(2500 HRS)
ANNUALLY
(5000 HRS)
1
Check all MHT tail and clearance lights for damage, security
and proper operation.
X
2
Check door indicator switch and cabling for damage and
security.
X
3
Check MHT rear bogie electrical junction box for damage and
security. Inspect all wire terminals strips for security.
X
4
Check gooseneck electrical cabling for damage and security
from the boom collar to the tractor integration point.
X
5
Check electric turn stop indicator, lights, backup alarms, cab
light/alarm assembly for damage, security and proper
operation.
X
STEP
MHT STRUCTURE & HITCH ASSEMBLY WEEKLY
(150 HRS)
BI‐WEEKLY
(250 HRS)
MONTHLY
(500 HRS)
QUARTERLY
(1000 HRS)
SEMI‐ANNUAL
(2500 HRS)
ANNUALLY
(5000 HRS)
1
Check MHT rear axle mounting structure and upper rear deck
for damage and cracks.
X
2
Check MHT rear bumper assembly for damage, security and
cracks.
3
Check lower hopper assembly and dump doors for security,
damage and cracks.
4
Check all MHT interior and exterior walls for damage and
cracks.
5
Check gooseneck assembly for damage and cracks. Inspect
gooseneck turn limit cheeks for evidence of turn limit
indicator contact.
6
Check ball hitch skirt assembly for damage, security and
cracks.
7
Remove ball skirt and inspect upper retention plate for broken
bolts and evidence of spherical ball contact with the upper
retention plate. Ensure upper spherical ball shows evidence of
lubrication.
8
Check clearance between hitch spherical ball and upper brass
bushing. If gap is more than 0.010” shim upper brass bushing
as described in MHT175‐CAT777(G)‐4.
9
Check tractor fender assemblies for damage, security and
cracks