Table 1.
The vehicles used during the isolated zone study.
| # | Equip-ment Manuf. | Equipment Model | Equipment Type | Equipment Category | Engine Manuf. and Model | Output, kW (hp) @ rpm | MSHA Approval Number | EPA | MSHA VR, m3/s / cfm | MSHA PI, m3/s / cfm | Exhaust System Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
| P1 | Wagner | 14X | LHD | HD permissible | Caterpillar 3306 PCNA | 112 (150) @ 2200 | 7E-B003 | Pre-Tier | 3.54 / 7,500 | 10.85 / 23,000 | Water scrubber |
| P2 | Eimco | EJC130 | LHD | HD permissible | Caterpillar 3306 PCNA | 112 (150) @ 2200 | 7E-B003 | Pre-Tier | 3.54 / 7,500 | 10.85 / 23,000 | Water scrubber |
| P3 | Sandvik | LS175 | LHD | HD permissible | Caterpillar 3126B HEUI | 168 (225) @ 2500 | 07-EPA060001 | Tier 2 | 7.32 / 15,500 | 4.25 / 9,000 | Dry heat exchanger and DFE |
| NP1 | Eimco | 913 | LHD | HD non-permissible | Cummins QSB4.5 | 127 (170) @ 2500 | 07-ENA070006 | Tier 3 | 3.07 / 6,500 | 4.01 / 8,500 | DOC/m uffler |
| NP2 | Eimco | 915 | LHD | HD non-permissible | Cummins QSB6.7 | 144 (193) @ 2500 | 07-ENA060010 | Tier 3 | 4.01 / 8,500 | 4.48 / 9,500 | Sintered Metal Filter (SMF) |
| NP3 | Eimco | 915 | LHD | HD non-permissible | Caterpillar 3306 ATAAC | 224 (300) @ 2200 | 7E-B017 | Pre-Tier | 5.43 / 11,500 | 5.66 /12,000 | DOC |
| LD1 | Duce | III | Personnel carrier | LD non-permissible | Cummins 4B3.3 | 48 (65) @ 2000 | 7E-B093 | Pre-Tier | 1.65 / 3,500 | 3.78 / 8,000 | DOC |
| LD2 | Tomcar | TM4 | Supervisor carrier | LD non-permissible | Daihatsu DM950DTH | 25 (33) @ 3500 | N/A | Tier 2 | N/A | N/A | muffler |
| LD3 | Jeep | J8 | Supervisor carrier | LD non-permissible | VM North America RA428JE8.05A | 118 (158) @ 3600 | 07-ENA110012 | none | 4.72 / 10,000 | 3.30 / 7,000 | DOC |
| LD4 | Gehl | RS5–19 | Telescopic handler | LD non-permissible | Yanmar 4TNV98C-NYEM | 52 (69) @ 2500 | N/A | Tier 4f | N/A | N/A | DPF |
| LD5 | Eimco | 975 | Water truck | LD non-permissible | Deutz F6L912W | 69 (93) @ 2500 | 7E-B028 | Pre-Tier | 2.12/5,000 | 2.36 / 5,000 | DOC |