OG4:3
RT655 Operator’s Guide
Johnston Sweepers Limited
Chapter - Optional Equipment
Page Issue A
A
F
C
B
RTOG. 014-4
D
E
The equipment comprises a hydraulically driven high pressure water pump (A) and unloader valve
(B) fitted to the subframe centre crossmember. A hand lance with 15 metres of hose on a recoiling
reel (C) mounted to the subframe rear crossmember and a manifold (D) attached to the nearside
water tank. An optional front spraybar (E) is available with isolating valve (F). The spraybar can be
used during sweeping operations to jet wash the road prior to, or after, sweeping.
The hand lance can be used to clean down the vehicle at the end of a shift or day’s work.
OPERATION
The auxiliary engine must be running and the throttle adjusted to 2000 rpm.
Press switch (M1) on the switch panel to activate the water pump.
HAND LANCE - Remove the lance (Item 37, Fig. 1) from its holster adjacent to the hose reel. Two
jets are provided at the nozzle; a fan spray and a pencil jet. To change between
jets the trigger should be released and the gun rotated through 180°, this will
automatically select the alternative jet.
SPRAYBARS - The front bar is activated by an isolating valve located on the near side water tank
(D). The valves should be closed when the hand lance is to be used.
NB
: The Supawash pump will not operate if the water tank is nearly empty. Low
level water switch illuminates in the cab when this occurs.#
DESCRIPTION
