JLG 4017 Parts Manual - Manual (Page 218)

HYDRAULIC CIRCUITS
4017 3121859 8-28
61 3977460 1 DUST PLUG, (use with female screw type coupling)
1001093827 1 DUST PLUG, (use with female quick disconnect type coupling)
1001097287 1 QUICK DISCONNECT ADAPTER KIT, (includes items 14, 60, dust plug & dust
cap)
Figure 8-11 Hydraulic Kits (Continued)
Item Part Number Qty. Description Rev.