MRP Mobile Rotating Pulverizer Operation & Maintenance Manual | 19
TEETH MAINTENANCE
When the jaw teeth are worn or cracking, performance is decreased and the teeth need to be replaced.
Wear personal protection equipment at all times. This
includes eye protection, hard hat, steel toe shoes,
leather gloves and hearing protection.
Jaw teeth are very heavy. DO NOT remove a tooth pin if
the tooth is not supported. The tooth may fall and cause
injury.
1.
Locate flat, hard ground and place the attachment on the ground.
Note: Work only on the jaw closest to the ground, with the tooth facing up.
2.
Remove the bolt and nut that holds the tooth in the jaw.
3.
Remove the tooth from the receptacle.
4. Ensure the tooth seat is clean.
5.
Insert a new tooth into the receptacle.
6. Insert bolt and fasten the nut to secure the tooth. Torque as specified in “Inspect / Torque Bolts” on page 18.
BUILD UP & HARDSURFACING
Wear personal protection equipment (PPE) at all times.
This includes eye protection, hard had, steel toe shoes,
leather gloves and hearing protection that conforms to
standards ANSI Z87.1 (Eye and Face Protection), ANSI
Z89.1 (Head Protection), ANSI Z41.1 (Foot Protection)
and ANSI S12.6 (S3.19) (Hearing Protection).
Do not use stainless hardsurface rod or other improper
build up and hardsurfacing products. Using improper
products may result in premature wear or cracking of
the base metal.
Material Recommendation
Choose a build up material that meets the following classifications.
Shielded Metal Arc Welding - Stick Electrodes
•
E7018
•
E8018-C3
