9)For 8 ton capacity and under:
Pull the split pin [24] out from the stopper pin [23] and remove the load chain [47] and the stopper pin from the stopper [22].
10)For 10 ton capacity and above:
Pull the split pin [52] out from the end pin [51] and remove the load chain [47] and the end pin. Unscrew two socket bolts (with the spring washers) fixing the stoppers [114] and remove the stoppers.
11)Remove the load chain [47] from the load sheave [14] by pulling the load chain toward the bottom hook.
12)Remove the split pin [5] from the top pin [4], then remove the top pin and the top hook [1] from the side Plate A [11] and B [13].
13)Place hoist with gear case side (or nameplate side) up.
14)Unscrew three nuts [31] (with the spring washers [32]) fixing the gear case [29], remove the gear case from the side plate B [13], and remove the ball bearing [28] from the gear case.
15)Remove two pairs of the gear #2 [27] (1/2T has one pair) from the side plate B [13].
16)Remove the snap ring [26] from the load sheave [14], then the load gear [25] from the load sheave.
17)Remove the side plate B [13] from the side plate A [11] and then take the ball bearing [16] out from the side plate B.
18)Remove the guide rollers [20], load sheave (attached to the pinion [17]), stripper [21] and the anchorage (stopper) [22] (for 10 Ton capacity and above: cross guide [53]) from the side plate A [11], then remove the ball bearing [15] from the side plate A.
19)Remove the snap ring [19] in the load sheave [14].
20)Remove the pinion [17] and the roller bearing [18] from the load sheave [14].
*NOTE: Hold the load sheave by hand and remove the bearing by tapping the pinion with a rubber mallet.
21)Pull the split pin [10] out from the slotted nut [9] and remove the slotted nut and chain pin from the bottom hook [6].
6.4Hoist Assembly6.4.1
Inspect and replace any worn or damaged parts per Table
Secure all nuts, bolts and split pins firmly.
Replace all split pins and retaining rings.
6.4.2Assembly
1)Apply grease to the rollers of the roller bearing [18] and insert the pinion [17] (from the side of the brake screw) into the roller bearing and insert them together into the load sheave [14]. Fix them with a snap ring [19].
*NOTE: The arrow* on the outer side of the roller bearing should face the gear side. When inserting, use a screwdriver on the bearing and tap it with a rubber mallet. See Fig.
: Always make sure that the snap ring is correctly seated.
28