Gradall 544B Parts Manual - Manual (Page 122)

10-20
HYDRAULIC COMPONENTS
Parking Brake Valve
Starting Serial No. 0155299S
Original Issue 3-90
Item Part No. Qty. Description Of Part
9104-3090 1 PARKING BRAKE VALVE ASSY
(includes items 1 thru 6)
1 9104-4297 1 KNOB
2 9104-4126 1 SPOOL
3 9104-4127 1 RETAINING RING
4 9104-4128 1 BACK-UP RING
5 9104-4129 1 O-RING
6 9104-4130 1 HOUSING
7 9103-3378 1 RUBBER BOOT (not shown)