26. Preoperational checks/Pre-drive checks
- 294 -
Part
Inspection location
and service task
Task
W
he
n
de
fec
tiv
e
Engine
Inspection procedure
Notes
Before
start
After
start
En
gin
e-
re
la
te
d
A
cc
el
er
ato
r
Pedal slack and play
Inspect
○
・
After starting the engine, depress the
accelerator pedal and check the following. If
you notice anything abnormal, stop the engine
immediately and investigate the cause.
・
Does the engine rise smoothly to high
revolutions when you depress the accelerator
pedal ?
・
The accelerator doesn't rest before the engine
reaches high revolutions.
・
After the engine reaches high revolutions,
take your foot off the pedal to check whether
the engine speed declines smoothly.
Acceleration and deceleration
in response to pedal movement
Inspect
○
H
yd
ra
ul
ic
sy
ste
m
-re
la
te
d
Oil reservoir
Hydraulic oil
Check oil
level
○
Park the machine on the level ground in the
driving position and check the oil level from the
level gauge on the side of the oil reservoir.
The oil level changes with oil temperature, so
always check the oil level before you start the
engine.
With reference to the ambient air temperature,
check that the oil level is within the scale and
add more oil if the level is too low.
Reservoir capacity:
280L
Oil to use:
ISO viscosity grade 46
or equivalent
Cylinder
Oil leakage
Inspect
○
Responsivity
Inspect
○
Hydraulic pump
Oil leakage
Inspect
○
Abnormal noise
Inspect
○
Oil cooler
Oil leakage
Inspect
○
Rotary seal
Oil leakage
Inspect
○
Hydraulic valve
Oil leakage
Inspect
○
Sle
w
in
g-
rel
at
ed
Slew
ing
gea
r
Bearing
Abnormal noise on
slewing
Inspect
○
Slewing brake action
Inspect
○
Move the slewing brake switch to the "brake"
side then check that the slewing upper structure
does not slew even when you work the slewing
control.
W
in
ch
-rel
at
ed
Hook
Attachment bolt
Inspect
○
Check the hook for play, abnormal wear, screw
deformation, damage to the wire rope retainer,
opening of the key etc.
Bearing play
Inspect
○
Sheave wear
Inspect
○
Wire rope retainer
Inspect
○
Hook
Inspect
○
Wire rope
Inspect
○
Before starting the day's work, check the state of
the locations through which the wire rope passes
to operate the crane.
Hook stowage confirmation switch
Inspect
○
・
If the boom is lowered, extended or the winch
is hoisted in the hook stowage mode, excessive
tension may be applied to the wire rope and
the rope may be broken. To prevent it, check
the operation of the hook stowage confirmation
switch according to the following procedure.
・
Fully retract the boom and make it horizontal.
・
Set ACS to the hook stowage mode.
・
Hoist the main hook to make the hook
stowage status.
・
Tilt the boom derricking/lowering lever in the
direction of lowering the boom and make sure
that the boom is not in motion.
Bo
om
-
rel
at
ed
Boom extension/retraction wire rope
Inspect
○
Boom slide plates (upper, lower)
Inspect
○
Summary of Contents for PREMIUM CITYRANGE CR-200RF
Page 2: ...218711 背厚 14 5 mm 中 ...
Page 14: ... 12 4 Dimensions T217591 021 0E Specification of CR 200Rf ...
Page 16: ... 14 MEMO ...
Page 24: ... 22 MEMO ...
Page 30: ... 4 MEMO ...
Page 36: ... 10 MEMO ...
Page 38: ... 12 3 General operation devices 2 Outside the cab ...
Page 60: ... 34 MEMO ...
Page 74: ... 48 MEMO ...
Page 82: ... 56 7 Air conditioner 7 6 Display when errors are detected T217921 020 0E ...
Page 120: ... 94 MEMO ...
Page 129: ... 102 MEMO ...
Page 138: ... 111 17 Drive operation devices Drive operation devices ...
Page 139: ... 112 17 Drive operation devices ...
Page 153: ... 126 17 Drive operation devices ...
Page 154: ... 127 17 Drive operation devices Drive operation devices ...
Page 237: ... 208 21 Crane operation devices 21 Crane operation devices 061A 0005 0E 1 Inside the cab ...
Page 238: ... 209 21 Crane operation devices Crane operation devices ...
Page 239: ... 210 21 Crane operation devices 2 Outside the cab ...
Page 259: ... 230 22 Crane operation when the outriggers are used ON OFF ...
Page 299: ... 270 24 Crane operation NOTE Extension retraction sequence for each boom length ...
Page 320: ...26 Preoperational checks Pre drive checks 290 ...
Page 321: ...Preoperational checks Pre drive checks 26 Preoperational checks Pre drive checks 291 ...
Page 322: ...26 Preoperational checks Pre drive checks 292 ...
Page 329: ...Preoperational checks Pre drive checks 26 Preoperational checks Pre drive checks 299 ...
Page 330: ...26 Preoperational checks Pre drive checks 300 ...
Page 331: ...Preoperational checks Pre drive checks 26 Preoperational checks Pre drive checks 301 ...
Page 332: ... 302 MEMO ...
Page 340: ... 310 MEMO ...
Page 342: ...899 92187110 ...