Century 974W25 Installation, Operation, Maintenance, Parts page 44

Section IV - OPERATING INSTRUCTIONS
4.8 SAFETY CHAIN HOOK-UP PROCEDURES (cont'd)
(b) Route free end of chain to vehicle to be towed and attach to
chassis around axle, leaf springs, frame or "A" frame. See
Figures 4.7 thru 4.10.
WRECKER (cont'd)
FIGURE 4.7 AXLE HOOK-UP
FIGURE 4.8 LEAF SPRING HOOK-UP
IV-6