Westco 16-25, Руководство по эксплуатации продукта, Страница: 17 / 49

Section 3 Page 4
Section 4
Maintenance
Servicing the tong consists of inspection, lubrication, tests and adjustments. Should
servicing reveal requirements for repairs, refer to the appropriate procedures in
"Troubleshooting, Repair and Overhaul" and "Testing" (Sections 5 and 6).
Overhaul Equipment
Jaw Dies
Rotary Gear
Latch Hook Springs
Jaw Rollers
Daily Inspection
Figure 4-1 illustrates the points that should be inspected prior to every job and
once every operating day thereafter.
Inspect the unit and its accessories for obvious damage, evidence of hydraulic
leaks, etc. Refer to the overhaul procedures for removal and replacement of
any faulty parts.
Inspect jaw dies to be sure that the biting edge is not worn excessively and is
capable of biting effectively. Change the dies if necessary.
Inspect gear teeth for excessive wear, damage or breakage. Replace if more
than two adjacent teeth are broken. If excessive wear or breakage is found,
inspect all internal gears and grease packing for metal particles and damage.
Springs must exert sufficient force to close latch firmly on the lug. Replace
if necessary.
Inspect jaw roller for free rotation. Lubricate as described under Jaw Roller
Lubrication procedure.