Broken Roof Glass on Certain MH3022 and MH3024 Material Handlers and M300F Wheeled Excavators {7303} Caterpillar

Material Handler

MH3022 (S/N: FM21-UP)

MH3024 (S/N: FM41-UP)

Wheeled Excavator

M314F (S/N: F4A1-UP)

M316F (S/N: F6N1-UP)

M318F (S/N: F8B1-UP)

M320F (S/N: F2W1-UP)

M322F (S/N: F2Z1-UP)

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

The cab roof glass can crack or break on the machines listed in this bulletin. These cracks are typically located in the corners of the glass.

Illustration 1	g06046857
Roof glass crack

Solution

Caterpillar is aware of this problem, but an interim repair has not been defined. Replace any cracked glass with the current part number listed in the applicable Parts Manual. The two part numbers currently used on these machines are listed in Table 1.