IMT 1015 User Manual

99903514:TELESCOPIC CRANE: 3-10 SECTION 3: REPAIR
Pins
Figure C-11: Pin Locations
3-11: PINS
Pins are frequently used as structural compo-
nents on telescopic cranes. Critical structural
pins which require inspection and repair include:
 Pin which secures the lower boom assem-
bly to the mast
 Pin which secures the main cylinder base
end to the mast
 Pin which secures the main cylinder rod end
to the lower boom assembly
 Pin which secures the extension boom
assembly to the boom tip.
See Figure C-11 for the pins which secure the
lower boom to the mast, the cylinder base to the
mast, and the cylinder rod to the lower boom.
Every two years, disassemble the crane and
inspect the critical structural pins (noted above)
for damage.
To remove the pins:
1. Support crane assemblies using a hoist or
two slings.
2. Remove pin.
3. Check for signs of wear. The pin should be
shiny with no galling or pitting in the contact
areas. Minor blemishes (see chart) can be
dressed and the pins can be reused. Pins
with cracks which extend into the pin cross
section must be replaced.
4. Reinstall pins. Use anti-seize to aid installa-
tion. Grease as needed.
Pin Defect Maximum Tolerance
Nick, gouge, or Up to 1/8” diameter
scratch
Circular scratch Up to 1/16” wide or deep
around the pin
Lengthwise scratch Up to 1/32” wide or deep
Pins with defects up to the maximum tolerance
can be repaired. To repair, dress the edges of
the flaw with a file so no metal protrudes above
the circular surface of the pin.
Pins with defects larger than those listed, or
with large cracks extending into the pin cross
section, must be replaced.
3-12: BEARINGS & BUSHINGS
3-12-1: BEARING TYPES
Roller bearings are used on sheaves in the
1007, 1015 and 2020 cranes.
Bushings, which are bearings without moving
parts, are used on the cylinders and booms of
some crane models. See chart for bushing
locations.
BUSHING LOCATIONS
MODEL MAST CYLINDER BOOMS
1015 No No No
2020 No Yes Yes
3020 No Yes No
3820 No Yes No
5020 No Yes No
5525 No Yes Yes
6025 No Yes Yes
6625 No Yes Yes
7020 No Yes Yes
7025 No Yes Yes
3-12-2: BEARING INSPECTION & RE-
PLACEMENT
To inspect bushings and bearings,
1. Degrease bearing.
2. Inspect the inside coating of the bearing. No
tears and breaks in the coating are accept-
able.
3. Inspect the metallic body of the bearing. No
change in the bearing dimensions are
permitted.
20030115

IMT 1015 Specifications

General

Brand	IMT
Model	1015
Category	Construction Equipment
Language	English